Vulnerability Details CVE-2026-23868
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 4.1%
CVSS Severity
CVSS v3 Score 5.1
References
- https://sourceforge.net/p/giflib/code/ci/f5b7267aed3665ef025c13823e454170d031c106/tree/gifalloc.c?diff=5146815377b7395944cb683a08c43eee3f631eb7
- https://www.facebook.com/security/advisories/cve-2026-23868
- https://access.redhat.com/errata/RHSA-2026:16008
- https://access.redhat.com/errata/RHSA-2026:16009
- https://access.redhat.com/errata/RHSA-2026:16030
- https://access.redhat.com/errata/RHSA-2026:16174
- https://access.redhat.com/errata/RHSA-2026:19154
- https://access.redhat.com/errata/RHSA-2026:19367
- https://access.redhat.com/errata/RHSA-2026:19724
- https://access.redhat.com/errata/RHSA-2026:19725
- https://access.redhat.com/errata/RHSA-2026:25096
- https://access.redhat.com/errata/RHSA-2026:8858
- https://access.redhat.com/errata/RHSA-2026:8859
- https://access.redhat.com/errata/RHSA-2026:8861
- https://access.redhat.com/errata/RHSA-2026:8883
- https://access.redhat.com/errata/RHSA-2026:8884
- https://access.redhat.com/errata/RHSA-2026:8885
- https://access.redhat.com/errata/RHSA-2026:8886
- https://access.redhat.com/errata/RHSA-2026:8887
- https://access.redhat.com/errata/RHSA-2026:9290
- https://access.redhat.com/errata/RHSA-2026:9291
- https://access.redhat.com/errata/RHSA-2026:9292
- https://access.redhat.com/errata/RHSA-2026:9294
- https://access.redhat.com/errata/RHSA-2026:9295
- https://access.redhat.com/security/cve/CVE-2026-23868
- https://bugzilla.redhat.com/show_bug.cgi?id=2446207
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23868.json
Products affected by CVE-2026-23868
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cpe:2.3:a:giflib_project:giflib:5.0.0
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cpe:2.3:a:giflib_project:giflib:5.0.1
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cpe:2.3:a:giflib_project:giflib:5.0.2
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cpe:2.3:a:giflib_project:giflib:5.0.3
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cpe:2.3:a:giflib_project:giflib:5.0.4
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cpe:2.3:a:giflib_project:giflib:5.0.5
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cpe:2.3:a:giflib_project:giflib:5.0.6
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cpe:2.3:a:giflib_project:giflib:5.1.0
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cpe:2.3:a:giflib_project:giflib:5.1.1
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cpe:2.3:a:giflib_project:giflib:5.1.2
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cpe:2.3:a:giflib_project:giflib:5.1.3
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cpe:2.3:a:giflib_project:giflib:5.1.4
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cpe:2.3:a:giflib_project:giflib:5.1.5
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cpe:2.3:a:giflib_project:giflib:5.1.6
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cpe:2.3:a:giflib_project:giflib:5.1.7
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cpe:2.3:a:giflib_project:giflib:5.1.8
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cpe:2.3:a:giflib_project:giflib:5.1.9
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cpe:2.3:a:giflib_project:giflib:5.2.0
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cpe:2.3:a:giflib_project:giflib:5.2.1