FreeBSD VuXML: Documenting security issues in FreeBSD and the FreeBSD Ports Collection

giflib -- Buffer Overflow vulnerability

Affected packages
		giflib	<=	6.1.3

Details

VuXML ID	dd6096e6-8555-11f1-b4c7-00a0980083d7
Discovery	2026-03-18
Entry	2026-07-21

https://github.com/zakkanijia/POC/blob/main/giflib/giftool/giflib_giftool_gce_len_heap_oobwrite_disclosure.md reports:

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.

[source]

References

CVE Name	CVE-2026-26740
URL	https://cveawg.mitre.org/api/cve/CVE-2026-26740