CVE-2026-109349: Gitoxidelabs Gix-Pack

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

gitoxide gix-pack before 0.75.0 contains a reachable assertion in BytesToEntriesIter::new_from_header: the pack header decoder accepts version 3, but a release-enabled assert_eq! requires version 2. A malicious remote can send a 12-byte pack header declaring version 3 to panic the client and abort the clone or fetch.

Affected products

Published 2026-10-12. Last modified 2026-10-16.