Bug 2567089 - CVE-2026-121520 doctl: BuildKit: Privilege escalation via unauthorized extended file attribute modification [fedora-all]
Summary: CVE-2026-121520 doctl: BuildKit: Privilege escalation via unauthorized extend...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: doctl
Version: rawhide
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Mikel Olasagasti Uranga
QA Contact:
URL:
Whiteboard: {"flaws": ["b3d404c6-8951-447d-bae4-6...
Depends On:
Blocks: CVE-2026-121520
TreeView+ depends on / blocked
 
Reported: 2026-11-04 16:34 UTC by Joel Chamberlain
Modified: 2026-11-04 16:34 UTC (History)
2 users (show)

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


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Description Joel Chamberlain 2026-11-04 16:34:05 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 prior to v0.34.1, a malicious client with access to the BuildKit control APIs can submit a build request that sets an extended attribute on a file outside the BuildKit state directory. Extended attributes in the trusted. or security. namespaces may also be set, potentially giving a program on the host elevated privileges. This issue affects build services that accept build requests from untrusted users. The issue is fixed in v0.34.1.


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