Medium5.8Red Hat & Ubuntu Linux
Log injection via CRLF sequences due to configuration attribute renames
CVE-2026-34478 Published Apr 10, 2026
CVE-2026-34478
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Log injection via CRLF sequences due to configuration attribute renames. Red Hat rates this moderate (CVSS 5.8). Weakness: CWE-93. Affected package(s): log4j-core-test, offline-knowledge-portal/rhokp-rhel9:1779996999, log4j-core. Resolved in Red Hat advisory RHSA-2026:22619 — update the affected packages (`sudo dnf update`).
Affected versions
- log4j-core-test
- offline-knowledge-portal/rhokp-rhel9:1779996999
- log4j-core
Official advisory · high-confidence parse· fetched 4 hours ago·verify at source
Fixed versions
- RHSA-2026:22619
Official advisory · high-confidence parse· fetched 4 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Update the affected package(s) to the fixed version shipped in RHSA-2026:22619 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 4 hours ago·verify at source
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