Medium [CVE-2026-5138] Information disclosure via improper validation of nested request parameters
This medium-severity Red Hat Linux advisory covers CVE-2026-5138 affecting Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 8.
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Summary
Information disclosure via improper validation of nested request parameters. Red Hat rates this moderate (CVSS 4.3).
Weakness: CWE-639. Red Hat lists fixing advisory RHSA-2026:34366 with package foreman-0:3.14.0.17-1.el9sat, foreman-0:3.18.0.7-1.el9sat, foreman-0:3.12.0.17-1.el9sat, foreman-0:3.12.0.17-1.el8sat.
Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 8.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 1 month ago·verify at source
- foreman-0:3.14.0.17-1.el9sat
- foreman-0:3.18.0.7-1.el9sat
- foreman-0:3.12.0.17-1.el9sat
- foreman-0:3.12.0.17-1.el8sat
- foreman-0:3.16.0.17-1.el9sat
- RHSA-2026:34366
Official advisory · high-confidence parse· fetched 1 month ago·verify at source
Mitigation
Upgrade to a fixed release: foreman-0:3.14.0.17-1.el9sat, foreman-0:3.18.0.7-1.el9sat, foreman-0:3.12.0.17-1.el9sat, foreman-0:3.12.0.17-1.el8sat, foreman-0:3.16.0.17-1.el9sat, RHSA-2026:34366. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 1 month ago·verify at source
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