Bug 2549767 (CVE-2026-109351) - CVE-2026-109351 gix-pack: gix-pack: Denial of Service via crafted pack-header object count
Summary: CVE-2026-109351 gix-pack: gix-pack: Denial of Service via crafted pack-header...
Keywords:
Status: NEW
Alias: CVE-2026-109351
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-12 16:45 UTC by OSIDB Bzimport
Modified: 2026-10-12 17:04 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2026-10-12 16:45:16 UTC 
Gitoxide gix-pack before 0.75.0 contains an uncontrolled memory allocation vulnerability that allows remote attackers to abort the process by supplying a huge pack-header object count. Malicious remotes can serve a 12-byte pack header claiming 0xFFFFFFFF objects, forcing Tree::with_capacity to reserve hundreds of gigabytes and crash clone or fetch operations.
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