GStreamer MRF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of MRF files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29510.

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2026:0992 advisory.

    Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:

    CVE-2026-18295:
    GStreamer MRF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability     allows remote attackers to execute arbitrary code on affected installations of GStreamer. User interaction     is required to exploit this vulnerability in that the target must visit a malicious page or open a     malicious file.

    The specific flaw exists within the parsing of MRF files. The issue results from the lack of proper     validation of user-supplied data, which can result in a write past the end of an allocated buffer. An     attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-     CAN-29510.

    CVE-2026-18296:
    GStreamer MRF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This     vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer.
    User interaction is required to exploit this vulnerability in that the target must visit a malicious page     or open a malicious file.

    The specific flaw exists within the parsing of MRF files. The issue results from the lack of proper     validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can     leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29608.

    CVE-2026-18298:
    GStreamer PNG File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This     vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer.
    User interaction is required to exploit this vulnerability in that the target must visit a malicious page     or open a malicious file.

    The specific flaw exists within the parsing of PNG files. The issue results from the lack of proper     validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can     leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29581.

    CVE-2026-18299:
    GStreamer rtpsbcdepay Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote     attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library     is required to exploit this vulnerability but attack vectors may vary depending on the implementation.

    The specific flaw exists within the processing of RTP payload elements. The issue results from the lack of     validating the existence of an object prior to performing operations on the object. An attacker can     leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29787.

Tenable has extracted the preceding description block directly from the Tencent 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 version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2026:0973 advisory.

    Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:

    CVE-2026-18295:
    GStreamer MRF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability     allows remote attackers to execute arbitrary code on affected installations of GStreamer. User interaction     is required to exploit this vulnerability in that the target must visit a malicious page or open a     malicious file. The specific flaw exists within the parsing of MRF files. The issue results from the lack     of proper validation of user-supplied data, which can result in a write past the end of an allocated     buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.
    Was ZDI-CAN-29510.

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

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

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-106462 advisory.

    GStreamer MRF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability     allows remote attackers to execute arbitrary code on affected installations of GStreamer. User interaction     is required to exploit this vulnerability in that the target must visit a malicious page or open a     malicious file.

    The specific flaw exists within the parsing of MRF files. The issue results from the lack of proper     validation of user-supplied data, which can result in a write past the end of an allocated buffer. An     attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-     CAN-29510.

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

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

The remote Fedora 44 host has packages installed that are affected by multiple vulnerabilities as referenced in the FEDORA-2026-e6ca27403f advisory.

    Update to 1.28.6.

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 packages installed that are affected by multiple vulnerabilities as referenced in the FEDORA-2026-bcfa11cd3b advisory.

    Backport multiple security fixes.

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.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-2121 advisory.

    GStreamer MRF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability     allows remote attackers to execute arbitrary code on affected installations of GStreamer. User interaction     is required to exploit this vulnerability in that the target must visit a malicious page or open a     malicious file.

    The specific flaw exists within the parsing of MRF files. The issue results from the lack of proper     validation of user-supplied data, which can result in a write past the end of an allocated buffer. An     attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-     CAN-29510. (CVE-2026-18295)

    A flaw was found in the GStreamer gst-plugins-good package. The rtph264depay and rtph265depay RTP     depayloader elements do not enforce a maximum size limit on the reassembly buffer used during fragmented     RTP packet processing. A remote, unauthenticated attacker can send a continuous stream of RTP fragments     without ever transmitting an end-of-fragment marker, causing the reassembly buffer to grow without bound     until process memory is exhausted. This results in a denial of service through process termination.
    (CVE-2026-18649)

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 version of gstreamer1-plugins-good installed on the remote host is prior to 1.18.4-6. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3899 advisory.

    GStreamer MRF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability     allows remote attackers to execute arbitrary code on affected installations of GStreamer. User interaction     is required to exploit this vulnerability in that the target must visit a malicious page or open a     malicious file.

    The specific flaw exists within the parsing of MRF files. The issue results from the lack of proper     validation of user-supplied data, which can result in a write past the end of an allocated buffer. An     attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-     CAN-29510. (CVE-2026-18295)

    A flaw was found in the GStreamer gst-plugins-good package. The rtph264depay and rtph265depay RTP     depayloader elements do not enforce a maximum size limit on the reassembly buffer used during fragmented     RTP packet processing. A remote, unauthenticated attacker can send a continuous stream of RTP fragments     without ever transmitting an end-of-fragment marker, causing the reassembly buffer to grow without bound     until process memory is exhausted. This results in a denial of service through process termination.
    (CVE-2026-18649)

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 remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-1684:07 advisory.

    * gstreamer: GStreamer: Remote Code Execution via MRF file parsing heap-based buffer overflow     (CVE-2026-18296)
      * gstreamer: GStreamer: Remote code execution via heap-based buffer overflow in PNG file parsing     (CVE-2026-18298)
      * gstreamer: GStreamer: Remote Code Execution via Use-After-Free in rtpsbcdepay (CVE-2026-18299)
      * GStreamer: GStreamer: Remote code execution via MRF file parsing (CVE-2026-18295)

Tenable has extracted the preceding description block directly from the MiracleLinux 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 MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-1677:06 advisory.

    * gstreamer: GStreamer: Remote Code Execution via MRF file parsing heap-based buffer overflow     (CVE-2026-18296)
      * gstreamer: GStreamer: Remote code execution via heap-based buffer overflow in PNG file parsing     (CVE-2026-18298)
      * gstreamer: GStreamer: Remote Code Execution via Use-After-Free in rtpsbcdepay (CVE-2026-18299)
      * GStreamer: GStreamer: Remote code execution via MRF file parsing (CVE-2026-18295)

Tenable has extracted the preceding description block directly from the MiracleLinux 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 AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:59152 advisory.

    * gstreamer: GStreamer: Remote Code Execution via MRF file parsing heap-based buffer overflow     (CVE-2026-18296)
      * gstreamer: GStreamer: Remote code execution via heap-based buffer overflow in PNG file parsing     (CVE-2026-18298)
      * gstreamer: GStreamer: Remote Code Execution via Use-After-Free in rtpsbcdepay (CVE-2026-18299)
      * GStreamer: GStreamer: Remote code execution via MRF file parsing (CVE-2026-18295)

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 AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:59133 advisory.

    * gstreamer: GStreamer: Remote Code Execution via MRF file parsing heap-based buffer overflow     (CVE-2026-18296)
      * gstreamer: GStreamer: Remote code execution via heap-based buffer overflow in PNG file parsing     (CVE-2026-18298)

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 Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-59152 advisory.

    - Fix CVE-2026-18299: Use-After-Free in rtpsbcdepay       Resolves: RHEL-246619
    - Fix CVE-2026-18296: size validation in qtmoovrecover MRF parsing       Resolves: RHEL-246558
    - Fix CVE-2026-18298 in gdkpixbufdec element       Resolves: RHEL-246572

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 RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:59152 advisory.

    * gstreamer: GStreamer: Remote Code Execution via MRF file parsing heap-based buffer overflow     (CVE-2026-18296)

    * gstreamer: GStreamer: Remote code execution via heap-based buffer overflow in PNG file parsing     (CVE-2026-18298)

    * gstreamer: GStreamer: Remote Code Execution via Use-After-Free in rtpsbcdepay (CVE-2026-18299)

    * GStreamer: GStreamer: Remote code execution via MRF file parsing (CVE-2026-18295)

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 RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:59179 advisory.

    * gstreamer: GStreamer: Remote Code Execution via MRF file parsing heap-based buffer overflow     (CVE-2026-18296)

    * gstreamer: GStreamer: Remote code execution via heap-based buffer overflow in PNG file parsing     (CVE-2026-18298)

    * gstreamer: GStreamer: Remote Code Execution via Use-After-Free in rtpsbcdepay (CVE-2026-18299)

    * GStreamer: GStreamer: Remote code execution via MRF file parsing (CVE-2026-18295)

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 AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:59179 advisory.

    * gstreamer: GStreamer: Remote Code Execution via MRF file parsing heap-based buffer overflow     (CVE-2026-18296)
      * gstreamer: GStreamer: Remote code execution via heap-based buffer overflow in PNG file parsing     (CVE-2026-18298)
      * gstreamer: GStreamer: Remote Code Execution via Use-After-Free in rtpsbcdepay (CVE-2026-18299)
      * GStreamer: GStreamer: Remote code execution via MRF file parsing (CVE-2026-18295)

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 Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-59179 advisory.

    - Fix CVE-2026-18296: heap buffer overflow in qtmoovrecover       Resolves: RHEL-246382
    - Fix CVE-2026-18298: heap buffer overflow in GdkPixbuf image decoder       Resolves: RHEL-246561
    - Fix CVE-2026-18299: Use-After-Free in rtpsbcdepay       Resolves: RHEL-246618

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-2026:59152 advisory.

    GStreamer is a streaming media framework based on graphs of filters which operate on media data. The     gstreamer1-plugins-good packages contain a collection of well-supported plug-ins of good quality and under     the LGPL license.

    Security Fix(es):

    * gstreamer: GStreamer: Remote Code Execution via MRF file parsing heap-based buffer overflow     (CVE-2026-18296)

    * gstreamer: GStreamer: Remote code execution via heap-based buffer overflow in PNG file parsing     (CVE-2026-18298)

    * gstreamer: GStreamer: Remote Code Execution via Use-After-Free in rtpsbcdepay (CVE-2026-18299)

    * GStreamer: GStreamer: Remote code execution via MRF file parsing (CVE-2026-18295)

    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 Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:59179 advisory.

    GStreamer is a streaming media framework based on graphs of filters which operate on media data. The     gstreamer1-plugins-good packages contain a collection of well-supported plug-ins of good quality and under     the LGPL license.

    Security Fix(es):

    * gstreamer: GStreamer: Remote Code Execution via MRF file parsing heap-based buffer overflow     (CVE-2026-18296)

    * gstreamer: GStreamer: Remote code execution via heap-based buffer overflow in PNG file parsing     (CVE-2026-18298)

    * gstreamer: GStreamer: Remote Code Execution via Use-After-Free in rtpsbcdepay (CVE-2026-18299)

    * GStreamer: GStreamer: Remote code execution via MRF file parsing (CVE-2026-18295)

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

  - GStreamer MRF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability     allows remote attackers to execute arbitrary code on affected installations of GStreamer. User interaction     is required to exploit this vulnerability in that the target must visit a malicious page or open a     malicious file. The specific flaw exists within the parsing of MRF files. The issue results from the lack     of proper validation of user-supplied data, which can result in a write past the end of an allocated     buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.
    Was ZDI-CAN-29510. (CVE-2026-18295)

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

ID	Name	Product	Family	Type	Severity
344393	TencentOS Server 3: gstreamer1-plugins-good (TSSA-2026:0992)	Nessus	Tencent Local Security Checks	Local	high
343510	TencentOS Server 4: gstreamer1-plugins-good (TSSA-2026:0973)	Nessus	Tencent Local Security Checks	Local	high
342892	Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: gstreamer1-plugins-good (UTSA-2026-106462)	Nessus	Unity Linux Local Security Checks	Local	high
342549	Fedora 44 : mingw-gstreamer1 / mingw-gstreamer1-plugins-bad-free / etc (2026-e6ca27403f)	Nessus	Fedora Local Security Checks	Local	high
342514	Fedora 43 : mingw-gstreamer1-plugins-base / mingw-gstreamer1-plugins-good (2026-bcfa11cd3b)	Nessus	Fedora Local Security Checks	Local	high
342045	Amazon Linux 2023 : gstreamer1-plugins-good, gstreamer1-plugins-good-gtk (ALAS2023-2026-2121)	Nessus	Amazon Linux Local Security Checks	Local	high
341837	Amazon Linux 2 : gstreamer1-plugins-good, --advisory ALAS2-2026-3899 (ALAS-2026-3899)	Nessus	Amazon Linux Local Security Checks	Local	high
341158	MiracleLinux 9 : gstreamer1-plugins-good-1.22.12-7.el9_8.8 (AXSA:2026-1684:07)	Nessus	Miracle Linux Local Security Checks	Local	high
341075	MiracleLinux 8 : gstreamer1-plugins-good-1.16.1-7.el8_10.7 (AXSA:2026-1677:06)	Nessus	Miracle Linux Local Security Checks	Local	high
340751	AlmaLinux 9 : gstreamer1-plugins-good (ALSA-2026:59152)	Nessus	Alma Linux Local Security Checks	Local	high
340721	AlmaLinux 10 : gstreamer1-plugins-good (ALSA-2026:59133)	Nessus	Alma Linux Local Security Checks	Local	high
339494	Oracle Linux 9 : gstreamer1-plugins-good (ELSA-2026-59152)	Nessus	Oracle Linux Local Security Checks	Local	high
339418	RockyLinux 9 : gstreamer1-plugins-good (RLSA-2026:59152)	Nessus	Rocky Linux Local Security Checks	Local	high
339417	RockyLinux 8 : gstreamer1-plugins-good (RLSA-2026:59179)	Nessus	Rocky Linux Local Security Checks	Local	high
339388	AlmaLinux 8 : gstreamer1-plugins-good (ALSA-2026:59179)	Nessus	Alma Linux Local Security Checks	Local	high
339378	Oracle Linux 8 : gstreamer1-plugins-good (ELSA-2026-59179)	Nessus	Oracle Linux Local Security Checks	Local	high
339182	RHEL 9 : gstreamer1-plugins-good (RHSA-2026:59152)	Nessus	Red Hat Local Security Checks	Local	high
339176	RHEL 8 : gstreamer1-plugins-good (RHSA-2026:59179)	Nessus	Red Hat Local Security Checks	Local	high
338709	Linux Distros Unpatched Vulnerability : CVE-2026-18295	Nessus	Misc.	Local	high

Detections

Analytics

CVE-2026-18295

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Tenable Plugins

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