The remote host is running a version of macOS / Mac OS X that is 26.x prior to 26.4. It is, therefore, affected by multiple vulnerabilities:

  - A logic issue was addressed with improved checks. This issue is fixed in macOS Tahoe 26.4. A user may be     able to elevate privileges. (CVE-2026-20631)

  - When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer performs a cross-protocol     redirect to a second URL that uses an IMAP, LDAP, POP3 or SMTP scheme, curl might wrongly pass on the     bearer token to the new target host. (CVE-2025-14524)

  - An integer overflow in the case of failed ACME certificate renewal leads, after a number of failures (~30     days in default configurations), to the backoff timer becoming 0. Attempts to renew the certificate then     are repeated without delays until it succeeds. This issue affects Apache HTTP Server: from 2.4.30 before     2.4.66. Users are recommended to upgrade to version 2.4.66, which fixes the issue. (CVE-2025-55753)

  - Apache HTTP Server 2.4.65 and earlier with Server Side Includes (SSI) enabled and mod_cgid (but not     mod_cgi) passes the shell-escaped query string to #exec cmd=... directives. This issue affects Apache     HTTP Server before 2.4.66. Users are recommended to upgrade to version 2.4.66, which fixes the issue.
    (CVE-2025-58098)

  - Server-Side Request Forgery (SSRF) vulnerability in Apache HTTP Server on Windows with AllowEncodedSlashes     On and MergeSlashes Off allows to potentially leak NTLM hashes to a malicious server via SSRF and     malicious requests or content Users are recommended to upgrade to version 2.4.66, which fixes the issue.
    (CVE-2025-59775)

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

The version of webkitgtk4 installed on the remote host is prior to 2.52.1-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3270 advisory.

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

    A cross-origin issue in the Navigation API was addressed with improved input validation. This issue is     fixed in Background Security Improvements for iOS, iPadOS, and macOS, Safari 26.4, iOS 18.7.7 and iPadOS     18.7.7, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. Processing maliciously crafted web     content may bypass Same Origin Policy. (CVE-2026-20643)

    The issue was addressed with improved memory handling. This issue is fixed in Safari 26.4, iOS 26.4 and     iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. Processing maliciously crafted web content may lead to an     unexpected process crash. (CVE-2026-20664)

    This issue was addressed through improved state management. This issue is fixed in Safari 26.4, iOS 18.7.7     and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4.
    Processing maliciously crafted web content may prevent Content Security Policy from being enforced.
    (CVE-2026-20665)

    An authorization issue was addressed with improved state management. This issue is fixed in Safari 26.4,     iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4, watchOS 26.4. A maliciously crafted webpage may     be able to fingerprint the user. (CVE-2026-20691)

    The issue was addressed with improved memory handling. This issue is fixed in Safari 26.4, iOS 26.4 and     iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. Processing maliciously crafted web content may lead to an     unexpected process crash. (CVE-2026-28857)

    The issue was addressed with improved memory handling. This issue is fixed in Safari 26.4, iOS 26.4 and     iPadOS 26.4, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4. A malicious website may be able to     process restricted web content outside the sandbox. (CVE-2026-28859)

    A logic issue was addressed with improved state management. This issue is fixed in Safari 26.4, iOS 18.7.7     and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. A malicious website may be     able to access script message handlers intended for other origins. (CVE-2026-28861)

    A logic issue was addressed with improved checks. This issue is fixed in Safari 26.4, iOS 18.7.7 and     iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4. 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 tested product 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 Rocky Linux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1779956120 advisory.

  - A cross-origin issue in the Navigation API was addressed with improved input validation. This issue is     fixed in Background Security Improvements for iOS, iPadOS, and macOS, Safari 26.4, iOS 18.7.7 and iPadOS     18.7.7, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. Processing maliciously crafted web     content may bypass Same Origin Policy. (CVE-2026-20643)

  - This issue was addressed through improved state management. This issue is fixed in Safari 26.4, iOS 18.7.7     and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4.
    Processing maliciously crafted web content may prevent Content Security Policy from being enforced.
    (CVE-2026-20665)

  - An authorization issue was addressed with improved state management. This issue is fixed in Safari 26.4,     iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4, watchOS 26.4. A maliciously crafted webpage may     be able to fingerprint the user. (CVE-2026-20691)

  - A logic issue was addressed with improved checks. This issue is fixed in Safari 26.4, iOS 18.7.7 and     iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4. Visiting a maliciously crafted website may lead     to a cross-site scripting attack. (CVE-2026-28871)

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

ID	Name	Product	Family	Published	Updated	Severity
303481	macOS 26.x < 26.4 Multiple Vulnerabilities (126794)	Nessus	MacOS X Local Security Checks	3/24/2026	8/21/2026	high
311208	Amazon Linux 2 : webkitgtk4, --advisory ALAS2-2026-3270 (ALAS-2026-3270)	Nessus	Amazon Linux Local Security Checks	4/30/2026	4/30/2026	medium
359853	Rocky Linux 9.6 [TuxCare] Security Update: webkit2gtk3 / webkit2gtk3-devel / webkit2gtk3-jsc / etc Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1779956120)	Nessus	Rocky Linux Local Security Checks	10/1/2026	10/1/2026	medium

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