CVE-2026-109350

Gitoxide gix-pack before 0.75.0 Denial of Service via OFS_DELTA Base Distance

State: Published
Severity: 7.1 High
Published: Oct 12, 2026
Updated: Oct 13, 2026
Reserved: Oct 12, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	7.1 High	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	VulnCheck
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H	VulnCheck

Weaknesses

CWE-617 Reachable Assertion

Affected Products

Product	Versions
gix-packGitoxideLabs	before 0.75.0Affected 0.75.0Not affected

References

GitHub Security Advisory (GHSA-mpf5-465h-mr53)vendor-advisory
VulnCheck Advisory: Gitoxide gix-pack before 0.75.0 Denial of Service via OFS_DELTA Base Distancethird-party-advisory

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