CVE-2026-26740

Name
CVE-2026-26740
Description
Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validating its allocated size.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
cve@mitre.org https://github.com/zakkanijia/POC/blob/main/giflib/giftool/giflib_giftool_gce_len_heap_oobwrite_disclosure.md

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:giflib_project:giflib:5.2.2:*:*:*:*:*:*:* giflib == None == 5.2.2

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
giflib edge-main 5.2.2-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
giflib edge-main 5.2.2-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
giflib 3.23-main 5.2.2-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
giflib 3.22-main 5.2.2-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
giflib 3.22-main 5.2.2-r0 None possibly vulnerable
giflib 3.21-main 5.2.2-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
giflib 3.21-main 5.2.2-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
giflib 3.20-main 5.2.2-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
giflib 3.19-main 5.2.2-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable