CVE-2026-4631: Cockpit: cockpit: unauthenticated remote code execution due to ssh command-line argument injection
- Is it exploited?
Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of .
VulnCheck KEV lists it since . It cites 50 public reports, the first from .
- How likely is exploitation in the next 30 days?
- 15.5%
Up from 9.2% on .
EPSS score, percentile 96.8 of all scored records. A probability estimated by FIRST, not a report of exploitation.
- How severe?
- 9.8 Critical
CVSS v3.1 base score, given by the CNA
- What should I do?
CISA has set no required action, because the vulnerability is not in KEV.
- Which versions are affected?
Unaffected 0:344-3.el10_1; 0:356.1-1.el10_2; 0:334.1-3.el10_0; 0:356.1-1.el9_8; 0:344-2.el9_7; 0:356.1-1.el9_8; and 2 more
Source: CISA KEV 2026.10.29, as of ; VulnCheck KEV, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.
Description
Cockpit: cockpit: unauthenticated remote code execution due to ssh command-line argument injection
Cockpit's remote login feature passes user-supplied hostnames and usernames from the web interface to the SSH client without validation or sanitization. An attacker with network access to the Cockpit web service can craft a single HTTP request to the login endpoint that injects malicious SSH options or shell commands, achieving code execution on the Cockpit host without valid credentials. The injection occurs during the authentication flow before any credential verification takes place, meaning no login is required to exploit the vulnerability.
Source: CVE List, as of . About the data.
What to do
Advisories and patches
This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.
Affected products and versions
Versions by product, as listed in the CVE record (10 products)
| Status | Versions |
|---|---|
| Unaffected | 0:344-3.el10_1 |
Versions not listed are: affected.
| Status | Versions |
|---|---|
| Unaffected | 0:356.1-1.el10_2 |
Versions not listed are: affected.
| Status | Versions |
|---|---|
| Unaffected | 0:334.1-3.el10_0 |
Versions not listed are: affected.
| Status | Versions |
|---|---|
| Unaffected | 0:356.1-1.el9_8 |
Versions not listed are: affected.
| Status | Versions |
|---|---|
| Unaffected | 0:344-2.el9_7 |
Versions not listed are: affected.
| Status | Versions |
|---|---|
| Unaffected | 0:356.1-1.el9_8 |
Versions not listed are: affected.
| Status | Versions |
|---|---|
| Unaffected | 0:344-2.el9_7 |
Versions not listed are: affected.
| Status | Versions |
|---|---|
| Unaffected | 0:334.2-2.el9_6 |
Versions not listed are: affected.
| Status | Versions |
|---|
Versions not listed are: unaffected.
| Status | Versions |
|---|
Versions not listed are: unaffected.
Versions the record lists as unaffected: 0:344-3.el10_1, 0:356.1-1.el10_2, 0:334.1-3.el10_0, 0:356.1-1.el9_8, 0:344-2.el9_7, 0:334.2-2.el9_6.
Source: CVE List, as of . About the data.
Weakness
CWE-78
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.
Timeline
| Date | Event |
|---|---|
| CVE record published | |
| CVE record last updated |
References
3
Known exploited Red Hat vulnerabilities
- CVE-2015-3246: Red Hat Libuser Race Condition Vulnerability
- CVE-2015-5287: Red Hat Automatic Bug Reporting Tool Privilege Escalation Vulnerability
- CVE-2018-14667: Red Hat JBoss RichFaces Framework Expression Language Injection Vulnerability
- CVE-2021-3560: Red Hat Polkit Incorrect Authorization Vulnerability
- CVE-2021-4034: Red Hat Polkit Out-of-Bounds Read and Write Vulnerability