Bug 2538991 (CVE-2026-88341) - CVE-2026-88341 yara: YARA: Denial of Service via crafted compiled rule file
Summary: CVE-2026-88341 yara: YARA: Denial of Service via crafted compiled rule file
Keywords:
Status: NEW
Alias: CVE-2026-88341
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: 2539101
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-22 21:55 UTC by OSIDB Bzimport
Modified: 2026-09-23 07:25 UTC (History)
2 users (show)

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

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Description OSIDB Bzimport 2026-09-22 21:55:54 UTC 
A reachable assertion vulnerability exists in YARA 4.5.8 when loading crafted .yrc compiled rule files. An attacker can provide a malicious file with an invalid arena configuration (num_buffers=0) that triggers an assertion failure in yr_arena_get_ptr(), causing the application to terminate.
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