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CVE record · CVE-2026-4631

Cockpit: cockpit: unauthenticated remote code execution due to ssh command-line argument injection

CVSS 9.8 CriticalCriticalEPSS 0.15 · 96th percentile

Critical, because:

  • CVSS score 9.8: 9.0 or more.
  • CVSS score 9.8 (7.0 or more) and EPSS 0.15 (0.1 or more): a high score and a real chance of exploitation in the next 30 days.

How we decide what’s critical

Published by the CVE Program (CNA: redhat) at 7 Apr 2026, 16:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Red Hat Red Hat Enterprise Linux 10 Package name: cockpit https://access.redhat.com/downloads/content/package-browser/
  • unaffected 0:344-3.el10_1 to before * rpm
Other versions: affected
Red Hat Red Hat Enterprise Linux 10 Package name: cockpit https://access.redhat.com/downloads/content/package-browser/
  • unaffected 0:356.1-1.el10_2 to before * rpm
Other versions: affected
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Package name: cockpit https://access.redhat.com/downloads/content/package-browser/
  • unaffected 0:334.1-3.el10_0 to before * rpm
Other versions: affected
Red Hat Red Hat Enterprise Linux 9 Package name: cockpit https://access.redhat.com/downloads/content/package-browser/
  • unaffected 0:356.1-1.el9_8 to before * rpm
Other versions: affected
Red Hat Red Hat Enterprise Linux 9 Package name: cockpit https://access.redhat.com/downloads/content/package-browser/
  • unaffected 0:344-2.el9_7 to before * rpm
Other versions: affected
Red Hat Red Hat Enterprise Linux 9 Package name: cockpit https://access.redhat.com/downloads/content/package-browser/
  • unaffected 0:356.1-1.el9_8 to before * rpm
Other versions: affected
Red Hat Red Hat Enterprise Linux 9 Package name: cockpit https://access.redhat.com/downloads/content/package-browser/
  • unaffected 0:344-2.el9_7 to before * rpm
Other versions: affected
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Package name: cockpit https://access.redhat.com/downloads/content/package-browser/
  • unaffected 0:334.2-2.el9_6 to before * rpm
Other versions: affected
Red Hat Red Hat Enterprise Linux 7 Package name: cockpit https://access.redhat.com/downloads/content/package-browser/ No versions given Other versions: unaffected
Red Hat Red Hat Enterprise Linux 8 Package name: cockpit https://access.redhat.com/downloads/content/package-browser/ No versions given Other versions: unaffected
Identifiers
CVE-2026-4631
CNA
redhat
Weakness (CWE)
CWE-78
Tags
Published
7 Apr 2026
Updated
4 Nov 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
9.8 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CNA (redhat)Used for this record
9.8 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H ADP (redhat-SADP)
  • CISA KEV Not listed.
  • EPSS 0.15, the 96th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 7 Apr 2026, 16:30 UTC Confirmed by the CVE List
  2. 7 Apr 2026, 17:16 UTC Confirmed by NVD

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.