Bug 2499687 (CVE-2026-48815) - CVE-2026-48815 sigstore: Sigstore: Unauthorized certificates accepted due to ignored `certificateOIDs` verification option
Summary: CVE-2026-48815 sigstore: Sigstore: Unauthorized certificates accepted due to ...
Keywords:
Status: NEW
Alias: CVE-2026-48815
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-13 14:40 UTC by OSIDB Bzimport
Modified: 2026-07-23 11:31 UTC (History)
39 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-07-13 14:40:09 UTC 
The documented certificateOIDs option in sigstore.verify() is accepted by the public API but discarded before verification, so required certificate extension OIDs are never checked. Applications that rely on certificateOIDs to restrict which certificates may sign artifacts receive no protection. Unauthorized certificates that should be rejected on extension policy are accepted. Fixed in sigstore 4.1.1.
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