Critical [CVE-2026-4631] Unauthenticated remote code execution due to SSH command-line argument injection
This critical-severity Red Hat Linux advisory covers CVE-2026-4631 affecting Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 9.6 Extended Update Support.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
VulniPulse record published
Summary
Unauthenticated remote code execution due to SSH command-line argument injection. Red Hat rates this critical (CVSS 9.8).
Weakness: CWE-78. Affected package(s): cockpit.
Resolved in Red Hat advisory RHSA-2026:7383 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 9.6 Extended Update Support.
Is CVE-2026-4631 exploited?
No exploitation is reported in the sources VulniPulse tracks: CVE-2026-4631 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.
How do I fix CVE-2026-4631?
Upgrade to a fixed release named by Red Hat:
- RHSA-2026:7383
Confirm against the vendor advisory before you patch.
- cockpit-0:344-3.el10_1
- cockpit-0:334.2-2.el9_6
- cockpit-0:334.1-3.el10_0
- cockpit-0:344-2.el9_7
Official advisory · high-confidence parse· fetched 4 months ago·verify at source
- RHSA-2026:7383
Official advisory · high-confidence parse· fetched 4 months ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:7383 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 4 months ago·verify at source
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