Bug 2513781 (CVE-2026-19519) - CVE-2026-19519 claircore: claircore: denial of service via unchecked type assertion in RPM header parser
Summary: CVE-2026-19519 claircore: claircore: denial of service via unchecked type ass...
Keywords:
Status: NEW
Alias: CVE-2026-19519
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: 2026-08-11 06:19 UTC by OSIDB Bzimport
Modified: 2026-08-12 13:26 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-08-11 06:19:12 UTC
A flaw was found in claircore's RPM package scanner. The Info.Load function uses bare type assertions to cast values returned by ReadData into expected Go types. An attacker who can push an image containing a crafted RPM database can declare a tag with a type that passes the class-based checkTagType validation but returns a different Go concrete type from ReadData, causing an unrecoverable panic that crashes the Clair indexer process. The panic propagates through x/sync/errgroup and is not caught by Clair's catchAbort middleware, resulting in a denial of service affecting all users of the shared indexer. Additionally, zero-count array-typed tags cause index-out-of-range panics through the same unrecovered path.


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