Bug 2567071 - CVE-2026-121522 docker-buildx: BuildKit: Denial of Service via duplicate Git source metadata resolution [fedora-all]
Summary: CVE-2026-121522 docker-buildx: BuildKit: Denial of Service via duplicate Git ...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: docker-buildx
Version: rawhide
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Maxwell G
QA Contact:
URL:
Whiteboard: {"flaws": ["554c42cb-b698-4489-a61d-c...
Depends On:
Blocks: CVE-2026-121522
TreeView+ depends on / blocked
 
Reported: 2026-11-04 15:47 UTC by Joel Chamberlain
Modified: 2026-11-04 15:47 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:

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Description Joel Chamberlain 2026-11-04 15:47:54 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

In BuildKit versions v0.26.0 through v0.34.1, a specific build definition that resolves metadata for the same Git source reference twice can cause the BuildKit daemon to panic and crash, interrupting builds handled by that daemon. The issue is fixed in v0.34.2.
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