High8.2Red Hat & Ubuntu Linux
global buffer over-read in mb_convert_encoding() with attacker-supplied encoding
CVE-2026-6104 Published May 10, 2026
CVE-2026-6104
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
global buffer over-read in mb_convert_encoding() with attacker-supplied encoding. Red Hat rates this important (CVSS 8.2). Weakness: CWE-125. Affected package(s): php8.4. Resolved in Red Hat advisory RHSA-2026:22649 — update the affected packages (`sudo dnf update`).
Affected versions
- php8.4-0:8.4.21-1.el10_2
Official advisory · high-confidence parse· fetched 7 hours ago·verify at source
Fixed versions
- RHSA-2026:22649
Official advisory · high-confidence parse· fetched 7 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Update the affected package(s) to the fixed version shipped in RHSA-2026:22649 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 7 hours ago·verify at source
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