CVE-2026-109350: Reachable Assertion in GitoxideLabs gix-pack
Description
Gitoxide gix-pack before 0.75.0 contains a denial of service vulnerability that allows malicious remotes to crash fetch operations by sending crafted thin-pack OFS_DELTA entries. Attackers can serve a thin pack with a REF_DELTA referencing an existing object followed by an OFS_DELTA whose base_distance exceeds pack_offset, triggering a panic in LookupRefDeltaObjectsIter that aborts the fetch process.
CVSS v4.0
Score 7.1high
Affected software
GitoxideLabs
gix-pack
pkg:github/gitoxidelabs/gix-packRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
GitoxideLabs gix-pack before version 0.75.0 contains a denial of service vulnerability triggered by malicious remotes sending thin packs with a REF_DELTA referencing an existing object followed by an OFS_DELTA whose base_distance exceeds the pack_offset. This causes a panic in the LookupRefDeltaObjectsIter function, aborting the fetch operation and resulting in a denial of service.
Potential Impact
An attacker can cause denial of service by crashing fetch operations in affected versions of gix-pack. This disrupts normal repository fetch functionality but does not provide code execution or data corruption based on the provided information.
Mitigation Recommendations
A fix is available in gix-pack version 0.75.0. Users should upgrade to version 0.75.0 or later to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-10-12T14:19:45.860Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6acd0c162cdf04f656b11c0a
Added to database: 10/12/2026, 16:34:30 UTC
Last enriched: 10/12/2026, 16:49:08 UTC
Last updated: 10/12/2026, 21:46:39 UTC
Views: 10
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