A heap overflow in libXrender before 0.9.13 in RenderQueryPictFormats could be used by malicious X servers to inject code into attached X clients.

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-3178 advisory.

    A heap overflow in libXrender before 0.9.13 in RenderQueryPictFormats could be used by malicious X servers     to inject code into attached X clients. (CVE-2026-88807)

Tenable has extracted the preceding description block directly from the tested product 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 version of libXrender installed on the remote host is prior to 0.9.10-1. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3983 advisory.

    A heap overflow in libXrender before 0.9.13 in RenderQueryPictFormats could be used by malicious X servers     to inject code into attached X clients. (CVE-2026-88807)

Tenable has extracted the preceding description block directly from the tested product 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 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-2026:1085 advisory.

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

    CVE-2026-88807:
    A heap overflow in libXrender before 0.9.13 inRenderQueryPictFormats could be used by malicious X     servers to inject code into attached X clients.

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.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - A heap overflow in libXrender before 0.9.13 in RenderQueryPictFormats could be used by malicious X servers
    to inject code into attached X clients. (CVE-2026-88807)

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:4397-1 advisory.

    This update for libXrender fixes the following issue:

    - CVE-2026-88807: RenderQueryPictFormats Reply Heap-based Buffer Overflow (bsc#1280911).

Tenable has extracted the preceding description block directly from the SUSE 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 SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:4395-1 advisory.

    This update for libXrender fixes the following issue:

    - CVE-2026-88807: RenderQueryPictFormats Reply Heap-based Buffer Overflow (bsc#1280911).

Tenable has extracted the preceding description block directly from the SUSE 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 openSUSE 16 host has packages installed that are affected by a vulnerability as referenced in the openSUSE- SU-2026:21909-1 advisory.

    This update for libXrender fixes the following issue:

    - CVE-2026-88807: RenderQueryPictFormats Reply Heap-based Buffer Overflow (bsc#1280911).

Tenable has extracted the preceding description block directly from the SUSE 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 Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - A heap overflow in libXrender before 0.9.13 in RenderQueryPictFormats could be used by malicious X servers     to inject code into attached X clients. (CVE-2026-88807)

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

ID	Name	Product	Family	Type	Severity
365246	Amazon Linux 2023 : libXrender, libXrender-devel (ALAS2023-2026-3178)	Nessus	Amazon Linux Local Security Checks	Local	high
365189	Amazon Linux 2 : libXrender (ALAS-2026-3983)	Nessus	Amazon Linux Local Security Checks	Local	high
365170	TencentOS Server 4: libXrender (TSSA-2026:1085)	Nessus	Tencent Local Security Checks	Local	high
461814	Echo: libxrender: security update to 1:0.9.12-1+e1	Tenable Cloud Security	Echo Local Security Checks	Local	high
461814	Echo: libxrender: security update to 1:0.9.12-1+e1	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	high
362581	SUSE SLED15 / SLES15 Security Update : libXrender (SUSE-SU-2026:4397-1)	Nessus	SuSE Local Security Checks	Local	high
362537	SUSE SLES12 Security Update : libXrender (SUSE-SU-2026:4395-1)	Nessus	SuSE Local Security Checks	Local	high
350163	openSUSE 16 Security Update : libXrender (openSUSE-SU-2026:21909-1)	Nessus	SuSE Local Security Checks	Local	high
349071	Linux Distros Unpatched Vulnerability : CVE-2026-88807	Nessus	Misc.	Local	high

Detections

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CVE-2026-88807

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Tenable Plugins

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