A memory initialization issue was addressed with improved memory handling. This issue is fixed in Safari 26.2, iOS 26.2 and iPadOS 26.2, macOS Tahoe 26.2, tvOS 26.2, visionOS 26.2, watchOS 26.2. Processing maliciously crafted web content may disclose internal states of the app.

redhat RHSA-2026:10702: RHSA-2026:10702: webkit2gtk3 security update (Important)

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:9692 advisory.

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash     (CVE-2025-43213)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash     (CVE-2025-43214)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash     (CVE-2025-43457)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43511)
      * webkitgtk: Processing maliciously crafted web content may disclose internal states of the app     (CVE-2025-46299)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2026-20608)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2026-20635)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2026-20636)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2026-20644)
      * webkitgtk: A remote attacker may be able to cause a denial-of-service (CVE-2026-20652)
      * webkitgtk: A website may be able to track users through Safari web extensions (CVE-2026-20676)
      * webkitgtk: Processing maliciously crafted web content may bypass Same Origin Policy (CVE-2026-20643)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2026-20664)
      * webkitgtk: Processing maliciously crafted web content may prevent Content Security Policy from being     enforced (CVE-2026-20665)
      * webkitgtk: A maliciously crafted webpage may be able to fingerprint the user (CVE-2026-20691)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2026-28857)
      * webkitgtk: A malicious website may be able to process restricted web content outside the sandbox     (CVE-2026-28859)
      * webkitgtk: Visiting a maliciously crafted website may lead to a cross-site scripting attack     (CVE-2026-28871)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:9692 advisory.

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash     (CVE-2025-43213)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash     (CVE-2025-43214)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash     (CVE-2025-43457)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43511)

    * webkitgtk: Processing maliciously crafted web content may disclose internal states of the app     (CVE-2025-46299)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2026-20608)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2026-20635)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2026-20636)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2026-20644)

    * webkitgtk: A remote attacker may be able to cause a denial-of-service (CVE-2026-20652)

    * webkitgtk: A website may be able to track users through Safari web extensions (CVE-2026-20676)

    * webkitgtk: Processing maliciously crafted web content may bypass Same Origin Policy (CVE-2026-20643)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2026-20664)

    * webkitgtk: Processing maliciously crafted web content may prevent Content Security Policy from being     enforced (CVE-2026-20665)

    * webkitgtk: A maliciously crafted webpage may be able to fingerprint the user (CVE-2026-20691)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2026-28857)

    * webkitgtk: A malicious website may be able to process restricted web content outside the sandbox     (CVE-2026-28859)

    * webkitgtk: Visiting a maliciously crafted website may lead to a cross-site scripting attack     (CVE-2026-28871)

Tenable has extracted the preceding description block directly from the RockyLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-9692 advisory.

    [2.52.3-0.1]
    - Update to 2.52.1

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:9692 advisory.

    WebKitGTK is the port of the portable web rendering engine WebKit to the GTK platform.

    Security Fix(es):

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash     (CVE-2025-43213)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash     (CVE-2025-43214)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash     (CVE-2025-43457)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43511)

    * webkitgtk: Processing maliciously crafted web content may disclose internal states of the app     (CVE-2025-46299)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2026-20608)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2026-20635)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2026-20636)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2026-20644)

    * webkitgtk: A remote attacker may be able to cause a denial-of-service (CVE-2026-20652)

    * webkitgtk: A website may be able to track users through Safari web extensions (CVE-2026-20676)

    * webkitgtk: Processing maliciously crafted web content may bypass Same Origin Policy (CVE-2026-20643)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2026-20664)

    * webkitgtk: Processing maliciously crafted web content may prevent Content Security Policy from being     enforced (CVE-2026-20665)

    * webkitgtk: A maliciously crafted webpage may be able to fingerprint the user (CVE-2026-20691)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2026-28857)

    * webkitgtk: A malicious website may be able to process restricted web content outside the sandbox     (CVE-2026-28859)

    * webkitgtk: Visiting a maliciously crafted website may lead to a cross-site scripting attack     (CVE-2026-28871)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1364-1 advisory.

    Update to version 2.52.0.

    Security issues fixed:

    - CVE-2023-43010: processing maliciously crafted web content may lead to memory corruption (bsc#1259950).
    - CVE-2025-31223: processing maliciously crafted web content may lead to memory corruption (bsc#1259949).
    - CVE-2025-31277: processing maliciously crafted web content may lead to memory corruption (bsc#1259948).
    - CVE-2025-43213: processing maliciously crafted web content may lead to an unexpected crash     (bsc#1259947).
    - CVE-2025-43214: processing maliciously crafted web content may lead to an unexpected crash     (bsc#1259946).
    - CVE-2025-43433: processing maliciously crafted web content may lead to memory corruption (bsc#1259945).
    - CVE-2025-43438: processing maliciously crafted web content may lead to an unexpected crash     (bsc#1259944).
    - CVE-2025-43441: processing maliciously crafted web content may lead to an unexpected process crash     (bsc#1259943).
    - CVE-2025-43457: processing maliciously crafted web content may lead to an unexpected crash     (bsc#1259942).
    - CVE-2025-43511: processing maliciously crafted web content may lead to an unexpected process crash     (bsc#1259941).
    - CVE-2025-46299: processing maliciously crafted web content may disclose internal states of an app     (bsc#1259940).
    - CVE-2026-20608: processing maliciously crafted web content may lead to an unexpected process crash     (bsc#1259939).
    - CVE-2026-20635: processing maliciously crafted web content may lead to an unexpected process crash     (bsc#1259938).
    - CVE-2026-20636: processing maliciously crafted web content may lead to an unexpected process crash     (bsc#1259937).
    - CVE-2026-20643: processing maliciously crafted web content may bypass Same Origin Policy (bsc#1261172).
    - CVE-2026-20644: processing maliciously crafted web content may lead to an unexpected process crash     (bsc#1259936).
    - CVE-2026-20652: a remote attacker may be able to cause a denial-of-service (bsc#1259935).
    - CVE-2026-20664: processing maliciously crafted web content may lead to an unexpected process crash     (bsc#1261173).
    - CVE-2026-20665: processing maliciously crafted web content may prevent Content Security Policy from     being enforced       (bsc#1261174).
    - CVE-2026-20676: a website may be able to track users through web extensions (bsc#1259934).
    - CVE-2026-20691: a maliciously crafted webpage may be able to fingerprint the user (bsc#1261175).
    - CVE-2026-28857: processing maliciously crafted web content may lead to an unexpected process crash     (bsc#1261176).
    - CVE-2026-28859: a malicious website may be able to process restricted web content outside the sandbox     (bsc#1261177).
    - CVE-2026-28861: a malicious website may be able to access script message handlers intended for other     origins       (bsc#1261178).
    - CVE-2026-28871: visiting a maliciously crafted website may lead to a cross-site scripting attack     (bsc#1261179).

    Other updates and bugfixes:

    - Make scrolling with touch input smoother for small movements.
    - Fix estimated load progress of downloads when Content-Length value is wrong.
    - Ensure that 'scrollend' events are correctly emitted after scroll animations.
    - Reduce the amount of useless MPRIS notifications produced by MediaSession when the information about     media being       played is incomplete.
    - Support turning off USE_GSTREAMER to configure the build with all multimedia features disabled.
    - Add Sysprof marks for mouse events.
    - Fix MediaSession icon for iheart.com not being displayed.
    - Fix the build with USE_GSTREAMER_GL disabled.
    - Fix the build with librice version 0.3.0 or newer.
    - Fix several crashes and rendering issues.
    - Translation updates: Georgian.

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-36594550b0 advisory.

    Update to 2.52.1.

    Notable changes from 2.50 to 2.52:

     * Make text look like in other browsers by blending in linear color space.
     * Improved rendering performance by using a different tile size depending on whether GPU rendering is     enabled or not.
     * Improved composition scheduling to avoid blocking waiting for tile painting.
     * Improved performance of accelerated 2D canvas by recording operations for batched replay.
     * Improved async scrolling when main thread is busy by avoiding locks and rendering the scrollbars from     the scrolling thread.
     * Enabled dynamic MSAA for accelerated 2D canvas rendering.
     * Improved text rendering performance
     * Videos with BT2100-PQ colorspace are now tone-mapped to SDR, ensuring colours do not appear washed out.
     * Added support for the Audio Output Devices API.
     * Added API to handle WebXR permission requests.
     * Added API to query the immersive session status.
     * Added initial API for web extensions.

    Additional changes from 2.52.0 to 2.52.1:

     * Reduce the amount of useless MPRIS notifications produced by MediaSesion when the information about     media being played is incomplete.
     * Add Sysprof marks for mouse events.
     * Fix MediaSession icon for iheart.com not being displayed.
     * Fix several crashes and rendering issues.
     * Translation updates: Georgian.


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-431948187d advisory.

    Update to 2.52.1.

    Notable changes from 2.50 to 2.52:

     * Make text look like in other browsers by blending in linear color space.
     * Improved rendering performance by using a different tile size depending on whether GPU rendering is     enabled or not.
     * Improved composition scheduling to avoid blocking waiting for tile painting.
     * Improved performance of accelerated 2D canvas by recording operations for batched replay.
     * Improved async scrolling when main thread is busy by avoiding locks and rendering the scrollbars from     the scrolling thread.
     * Enabled dynamic MSAA for accelerated 2D canvas rendering.
     * Improved text rendering performance
     * Videos with BT2100-PQ colorspace are now tone-mapped to SDR, ensuring colours do not appear washed out.
     * Added support for the Audio Output Devices API.
     * Added API to handle WebXR permission requests.
     * Added API to query the immersive session status.
     * Added initial API for web extensions.

    Additional changes from 2.52.0 to 2.52.1:

     * Reduce the amount of useless MPRIS notifications produced by MediaSesion when the information about     media being played is incomplete.
     * Add Sysprof marks for mouse events.
     * Fix MediaSession icon for iheart.com not being displayed.
     * Fix several crashes and rendering issues.
     * Translation updates: Georgian.


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1150-1 advisory.

    Update to version 2.52.0:

    - CVE-2023-43010: processing maliciously crafted web content may lead to memory corruption (bsc#1259950).
    - CVE-2025-31223: processing maliciously crafted web content may lead to memory corruption (bsc#1259949).
    - CVE-2025-31277: processing maliciously crafted web content may lead to memory corruption (bsc#1259948).
    - CVE-2025-43213: processing maliciously crafted web content may lead to an unexpected crash     (bsc#1259947).
    - CVE-2025-43214: processing maliciously crafted web content may lead to an unexpected crash     (bsc#1259946).
    - CVE-2025-43433: processing maliciously crafted web content may lead to memory corruption (bsc#1259945).
    - CVE-2025-43438: processing maliciously crafted web content may lead to an unexpected crash     (bsc#1259944).
    - CVE-2025-43441: processing maliciously crafted web content may lead to an unexpected process crash     (bsc#1259943).
    - CVE-2025-43457: processing maliciously crafted web content may lead to an unexpected crash     (bsc#1259942).
    - CVE-2025-43511: processing maliciously crafted web content may lead to an unexpected process crash     (bsc#1259941).
    - CVE-2025-46299: processing maliciously crafted web content may disclose internal states of an app     (bsc#1259940).
    - CVE-2026-20608: processing maliciously crafted web content may lead to an unexpected process crash     (bsc#1259939).
    - CVE-2026-20635: processing maliciously crafted web content may lead to an unexpected process crash     (bsc#1259938).
    - CVE-2026-20636: processing maliciously crafted web content may lead to an unexpected process crash     (bsc#1259937).
    - CVE-2026-20644: processing maliciously crafted web content may lead to an unexpected process crash     (bsc#1259936).
    - CVE-2026-20652: a remote attacker may be able to cause a denial-of-service (bsc#1259935).
    - CVE-2026-20676: a website may be able to track users through web extensions (bsc#1259934).

    Changelog:

     - Make scrolling with touch input smoother for small movements.
     + Fix estimated load progress of downloads when Content-Length      value is wrong.
     + Ensure that 'scrollend' events are correctly emitted after      scroll animations.
     + Fix several crashes and rendering issues.

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1139-1 advisory.

    Update to version 2.52.0:

    - CVE-2023-43010: processing maliciously crafted web content may lead to memory corruption (bsc#1259950).
    - CVE-2025-31223: processing maliciously crafted web content may lead to memory corruption (bsc#1259949).
    - CVE-2025-31277: processing maliciously crafted web content may lead to memory corruption (bsc#1259948).
    - CVE-2025-43213: processing maliciously crafted web content may lead to an unexpected crash     (bsc#1259947).
    - CVE-2025-43214: processing maliciously crafted web content may lead to an unexpected crash     (bsc#1259946).
    - CVE-2025-43433: processing maliciously crafted web content may lead to memory corruption (bsc#1259945).
    - CVE-2025-43438: processing maliciously crafted web content may lead to an unexpected crash     (bsc#1259944).
    - CVE-2025-43441: processing maliciously crafted web content may lead to an unexpected process crash     (bsc#1259943).
    - CVE-2025-43457: processing maliciously crafted web content may lead to an unexpected crash     (bsc#1259942).
    - CVE-2025-43511: processing maliciously crafted web content may lead to an unexpected process crash     (bsc#1259941).
    - CVE-2025-46299: processing maliciously crafted web content may disclose internal states of an app     (bsc#1259940).
    - CVE-2026-20608: processing maliciously crafted web content may lead to an unexpected process crash     (bsc#1259939).
    - CVE-2026-20635: processing maliciously crafted web content may lead to an unexpected process crash     (bsc#1259938).
    - CVE-2026-20636: processing maliciously crafted web content may lead to an unexpected process crash     (bsc#1259937).
    - CVE-2026-20644: processing maliciously crafted web content may lead to an unexpected process crash     (bsc#1259936).
    - CVE-2026-20652: a remote attacker may be able to cause a denial-of-service (bsc#1259935).
    - CVE-2026-20676: a website may be able to track users through web extensions (bsc#1259934).

    Changelog:

     - Make scrolling with touch input smoother for small movements.
     + Fix estimated load progress of downloads when Content-Length      value is wrong.
     + Ensure that 'scrollend' events are correctly emitted after      scroll animations.
     + Fix several crashes and rendering issues.

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-f00460a7d9 advisory.

    Update to 2.52.1:

     * Reduce the amount of useless MPRIS notifications produced by MediaSesion when the information about     media being played is incomplete.
     * Add Sysprof marks for mouse events.
     * Fix MediaSession icon for iheart.com not being displayed.
     * Fix several crashes and rendering issues.
     * Translation updates: Georgian.

    ----

    Update to 2.52.0:

     * Make text look like in other browsers by blending in linear color space.
     * Improved rendering performance by using a different tile size depending on whether GPU rendering is     enabled or not.
     * Improved composition scheduling to avoid blocking waiting for tile painting.
     * Improved performance of accelerated 2D canvas by recording operations for batched replay.
     * Improved async scrolling when main thread is busy by avoiding locks and rendering the scrollbars from     the scrolling thread.
     * Enabled dynamic MSAA for accelerated 2D canvas rendering.
     * Improved text rendering performance
     * Videos with BT2100-PQ colorspace are now tone-mapped to SDR, ensuring colours do not appear washed out.
     * Added support for the Audio Output Devices API.
     * Added API to handle WebXR permission requests.
     * Added API to query the immersive session status.
     * Added initial API for web extensions.

    ----

    2.51.93:

     * Make text look like in other browsers by blending in linear color space.
     * Avoid composition for non visible layers with running animations.
     * Fix several crashes and rendering issues.


    ----

    2.51.92:

     * Fix PDF rendering broken by the accelerated 2D canvas performance improvements.
     * Fix flickering while scrolling in some edge cases.
     * Support for rotation and mirroring in internal WebCodecs encoder.
     * System fallback font selection no longer takes style into account.
     * Fix several crashes and rendering issues.





Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - A memory initialization issue was addressed with improved memory handling. This issue is fixed in Safari     26.2, iOS 26.2 and iPadOS 26.2, macOS Tahoe 26.2, tvOS 26.2, visionOS 26.2, watchOS 26.2. Processing     maliciously crafted web content may disclose internal states of the app. (CVE-2025-46299)

Note that Nessus relies on the presence of the package as reported by the vendor.

The version of Apple iOS running on the mobile device is prior to 26.2. It is, therefore, affected by multiple vulnerabilities.

ID	Name	Product	Family	Severity
310151	AlmaLinux 9 : webkit2gtk3 (ALSA-2026:9692)	Nessus	Alma Linux Local Security Checks	medium
310118	RockyLinux 9 : webkit2gtk3 (RLSA-2026:9692)	Nessus	Rocky Linux Local Security Checks	medium
309853	Oracle Linux 9 : webkit2gtk3 (ELSA-2026-9692)	Nessus	Oracle Linux Local Security Checks	medium
309655	RHEL 9 : webkit2gtk3 (RHSA-2026:9692)	Nessus	Red Hat Local Security Checks	medium
306700	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : webkit2gtk3 (SUSE-SU-2026:1364-1)	Nessus	SuSE Local Security Checks	medium
306478	Fedora 42 : webkitgtk (2026-36594550b0)	Nessus	Fedora Local Security Checks	medium
306476	Fedora 43 : webkitgtk (2026-431948187d)	Nessus	Fedora Local Security Checks	medium
304484	SUSE SLES15 Security Update : webkit2gtk3 (SUSE-SU-2026:1150-1)	Nessus	SuSE Local Security Checks	medium
304374	SUSE SLES12 Security Update : webkit2gtk3 (SUSE-SU-2026:1139-1)	Nessus	SuSE Local Security Checks	medium
304343	Fedora 44 : webkitgtk (2026-f00460a7d9)	Nessus	Fedora Local Security Checks	medium
303064	Linux Distros Unpatched Vulnerability : CVE-2025-46299	Nessus	Misc.	medium
278573	Apple iOS < 26.2 Multiple Vulnerabilities (125884)	Nessus	Mobile Devices	high

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