Medium 6.5Published Oct 12, 2026

CVE-2026-109349gix-pack before 0.75.0 Reachable Assertion DoS via Pack Version 3 Header

Updated under an hour ago (Oct 28, 2026, 8:50 AM ET)

Does this affect you?

It affects GitoxideLabs gix-pack. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for GitoxideLabs gix-pack

Exploited in the last 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.

CVSS: 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-617
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Awaiting Analysis
Record last updated: Oct 13, 2026
First seen by InfoSec Signals: Oct 12, 2026

Affected products

Affected products

GitoxideLabs gix-pack gitoxidelabs:gix_pack (from the name)	before 0.75.0; 0.75.0 not affected	CNA record

References

References

https://github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-633h-mqjc-8rwg	vendor-advisory
https://www.vulncheck.com/advisories/gix-pack-before-0.75.0-reachable-assertion-dos-via-pack-version-3-header	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.