Low3.3Red Hat Linux

Low [CVE-2026-13574] Denial of service via heap-based buffer overflow in Bitcode File Handler

This low-severity Red Hat Linux advisory covers CVE-2026-13574.

CVE-2026-13574 Published Jun 29, 2026Updated by vendor Jun 29, 2026

CVE-2026-13574

Affected products & platforms

Red Hat LinuxUnclassified

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Summary

Denial of service via heap-based buffer overflow in Bitcode File Handler. Red Hat rates this low (CVSS 3.3).

Weakness: CWE-805. Red Hat lists fixing advisory RHSA-2026:7634 with package llvm21-main-21.1.8-6.hum1, llvm-main-21.1.8-1.1.hum1.

Affected versions

llvm21-main-21.1.8-6.hum1
llvm-main-21.1.8-1.1.hum1

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions

llvm21-main-21.1.8-6.hum1
llvm-main-21.1.8-1.1.hum1
RHSA-2026:7634

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Update the affected package(s) to the fixed version shipped in RHSA-2026:7634 (`sudo dnf update` / `yum update`).

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

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