CVE-2026-23868
giflib: Giflib: Double-free vulnerability leading to memory corruption
Severity
ImportantRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · March 11, 2026
Updated · July 15, 2026
Description
A flaw was found in giflib. This double-free vulnerability, caused by a shallow copy in GifMakeSavedImage and incorrect error handling, may allow an attacker to corrupt memory. While difficult to trigger, successful exploitation could potentially lead to arbitrary code execution or a denial of service.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVSS / CWE
CVSS 3.1 · 7CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-825 · Expired Pointer Dereference