CVE-2026-4631

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

15.48% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 96.5% of scored records. A rank, not a probability.

NVD base score

9.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-08-04.

Red Hat severity

Critical. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-04-07 16:30Z5 MO AGO

Last updated

2026-08-04 12:07Z1 MO AGO

Reserved

2026-03-23

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

• CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')Base

Data version

5.2

Document digest

24832bea5f232b6a11632669a22e649d563f5feee40e7e553ac2d99303589d56

• access.redhat.comRHSA-2026:7381https://access.redhat.com/errata/RHSA-2026:7381vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:7382https://access.redhat.com/errata/RHSA-2026:7382vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:7383https://access.redhat.com/errata/RHSA-2026:7383vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:7384https://access.redhat.com/errata/RHSA-2026:7384vendor-advisoryx_refsource_REDHAT
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-4631vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2450246https://bugzilla.redhat.com/show_bug.cgi?id=2450246issue-trackingx_refsource_REDHAT
• github.comhttps://github.com/cockpit-project/cockpit/security/advisories/GHSA-m4gv-x78h-3427
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2026/04/10/5
• security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4631.jsonx_sadp-csaf-vex