Medium5.4Red Hat Linux

Medium [CVE-2026-6735] Cross-Site Scripting vulnerability via improper URL sanitation

This medium-severity Red Hat Linux advisory covers CVE-2026-6735 affecting Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 1, php8.4.

CVE-2026-6735 Published May 10, 2026

CVE-2026-6735

Affected products & platforms

Red Hat LinuxUnclassified

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Summary

Cross-Site Scripting vulnerability via improper URL sanitation. Red Hat rates this moderate (CVSS 5.4).

Weakness: CWE-79. Affected package(s): php, php8.4, php:8.2, php:7.4, php:8.3, php-main.

Resolved in Red Hat advisory RHSA-2026:22649 — update the affected packages (`sudo dnf update`).

Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 1.

Affected versions

php-0:8.0.30-6.el9_8
php8.4-0:8.4.21-1.el10_2
php:8.2-9080020260521080715.9
php:7.4-8100020260604072603.f7998665
php:8.3-9080020260521113736.9
php-0:8.3.31-1.el10_2
php-main-8.5.6-1.hum1
php:8.2-8100020260521052503.f7998665

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

Fixed versions

RHSA-2026:22649

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-2026:22649 (`sudo dnf update` / `yum update`).

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

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