CVE-2026-109349highCWE-617

CVE-2026-109349: high-severity vulnerability in GitoxideLabs gix-pack

gix-pack before 0.75.0 Reachable Assertion DoS via Pack Version 3 Header

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21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.1epss 0.3%
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
GitoxideLabs · gix-pack
Related CVEs — GitoxideLabs gix-pack

In the same product, most dangerous first.

CVE-2026-109351HIGHGitoxide gix-pack before 0.75.0 Denial of Service via Pack Header Object CountEPSS 0.3%CVE-2026-109350HIGHGitoxide gix-pack before 0.75.0 Denial of Service via OFS_DELTA Base DistanceEPSS 0.3%