What is CVE-2026-23868?

CVE-2026-23868 is a medium-severity vulnerability in Giflib, classified under Double Free. CVSS score: 5.1/10. Published 2026-03-10.

How severe is CVE-2026-23868?

Medium severity. CVSS v3 base score is 5.1 out of 10.

Double Free in Giflib

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.

Vulnerability class: Double Free

EPSS: 0.000 (5.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.1 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Giflib — versions 5.0.0
Giflib_project Giflib

Weakness classification (CWE)

CWE-415 — Double Free

References

cve-assign@fb.com (x_refsource_CONFIRM, Third Party Advisory)
cve-assign@fb.com (x_refsource_CONFIRM, Patch)

Frequently asked questions

What is CVE-2026-23868?: CVE-2026-23868 is a medium-severity vulnerability in Giflib, classified under Double Free. CVSS score: 5.1/10. Published 2026-03-10.
How severe is CVE-2026-23868?: Medium severity. CVSS v3 base score is 5.1 out of 10.