Giflib contains a double-free vulnerability that is the result of a shallow copy in GifMakeSavedImage and incorrect error handling. The conditions needed to trigger this vulnerability are difficult but may be possible.

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1508 advisory.

    Giflib contains a double-free vulnerability that is the result of a shallow copy in GifMakeSavedImage and     incorrect error handling. The conditions needed to trigger this vulnerability are difficult but may be     possible. (CVE-2026-23868)

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 giflib installed on the remote host is prior to 4.1.6-9. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3212 advisory.

    Giflib contains a double-free vulnerability that is the result of a shallow copy in GifMakeSavedImage and     incorrect error handling. The conditions needed to trigger this vulnerability are difficult but may be     possible. (CVE-2026-23868)

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 remote Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-758ce76ef6 advisory.

    Fix CVE-2026-23868.

Tenable has extracted the preceding description block directly from the Fedora 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 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1005-1 advisory.

    - CVE-2026-23868: double-free result of a shallow copy can lead to memory corruption (bsc#1259502).

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 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-c260342365 advisory.

    Fix CVE-2026-23868.

Tenable has extracted the preceding description block directly from the Fedora 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 CBL-Mariner Releases installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2026-23868 advisory.

  - Giflib contains a double-free vulnerability that is the result of a shallow copy in GifMakeSavedImage and     incorrect error handling. The conditions needed to trigger this vulnerability are difficult but May be     possible. (CVE-2026-23868)

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 CBL-Mariner Releases installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2026-23868 advisory.

  - Giflib contains a double-free vulnerability that is the result of a shallow copy in GifMakeSavedImage and     incorrect error handling. The conditions needed to trigger this vulnerability are difficult but May be     possible. (CVE-2026-23868)

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.

  - Giflib contains a double-free vulnerability that is the result of a shallow copy in GifMakeSavedImage and     incorrect error handling. The conditions needed to trigger this vulnerability are difficult but may be     possible. (CVE-2026-23868)

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

ID	Name	Product	Family	Severity
304584	Amazon Linux 2023 : giflib, giflib-devel, giflib-utils (ALAS2023-2026-1508)	Nessus	Amazon Linux Local Security Checks	medium
304572	Amazon Linux 2 : giflib, --advisory ALAS2-2026-3212 (ALAS-2026-3212)	Nessus	Amazon Linux Local Security Checks	medium
304022	Fedora 44 : giflib (2026-758ce76ef6)	Nessus	Fedora Local Security Checks	medium
303780	SUSE SLES12 Security Update : giflib (SUSE-SU-2026:1005-1)	Nessus	SuSE Local Security Checks	medium
303383	Fedora 43 : giflib (2026-c260342365)	Nessus	Fedora Local Security Checks	medium
302260	CBL Mariner 2.0 Security Update: CBL-Mariner Releases (CVE-2026-23868)	Nessus	MarinerOS Local Security Checks	medium
302259	Azure Linux 3.0 Security Update: CBL-Mariner Releases (CVE-2026-23868)	Nessus	Azure Linux Local Security Checks	medium
301790	Linux Distros Unpatched Vulnerability : CVE-2026-23868	Nessus	Misc.	medium

Detections

Analytics

CVE-2026-23868

medium

Tenable Plugins

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medium

medium

medium

medium

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medium