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.
Advisories

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Fixes

Solution

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Workaround

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History

Tue, 22 Sep 2026 20:00:00 +0000

Type Values Removed Values Added
Description 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.
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-09-22T19:45:10.408Z

Reserved: 2026-09-10T00:00:00.000Z

Link: CVE-2026-88341

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-22T20:17:10.370

Modified: 2026-09-22T20:17:10.370

Link: CVE-2026-88341

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.