Home/CVE/Giflib contains a double-free vulnerability that is the result of a shallow copy in GifMakeSavedImage and incorrect erro
CVE

CVE-2026-23868

Giflib contains a double-free vulnerability that is the result of a shallow copy in GifMakeSavedImage and incorrect erro

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.

MEDIUM · CVSS 5.1 EPSS 0.00019
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-415Double Free
▤

Affected Products & Versions

1
giflib project giflib>= 5.0.0 and <= 6.1.1
▣

Scoring & Timeline

5.1
MEDIUM · CVSS v3.1 · cve-assign@fb.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 Mar 2026 · 08:16 PM
CVSS VectorCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

27
rhsaRHSA-2026:16030Moderate
rhsaRHSA-2026:16009Moderate
rhsaRHSA-2026:16008Moderate
suse-csafopenSUSE-SU-2026:20601-1
suse-csafSUSE-SU-2026:21368-1
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://sourceforge.net/p/giflib/code/ci/f5b7267aed3665ef025c13823e454170d031c106/tree/gifalloc.c?diff=5146815377b7395944cb683a08c43eee3f631eb7Patch
https://www.facebook.com/security/advisories/cve-2026-23868Third Party Advisory
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