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VulnerabilityPublished Updated

CVE-2026-4802: Red Hat Enterprise Linux 10 · OS Command Injection

Affects Red Hat Enterprise Linux 10Source CVE Database V5

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Not known to be exploited · CVSS 8.0 High.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
8.0High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
1.0% chance of exploitation in 30 days – higher than 63% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: evidence found.

    Public exploit code: GitHub proofs of concept

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), GitHub proofs of concept, the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Red Hat Enterprise Linux 10cockpitAffected–Fixed in–
Red Hat Enterprise Linux 10.0 Extended Update SupportcockpitAffected–Fixed in–
Red Hat Enterprise Linux 8cockpitAffected–Fixed in–
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportcockpitAffected–Fixed in–
Red Hat Enterprise Linux 8.6 Telecommunications Update ServicecockpitAffected–Fixed in–
Red Hat Enterprise Linux 8.6 Update Services for SAP SolutionscockpitAffected–Fixed in–

AI-suggested

Red Hat has released official security updates for Cockpit in Red Hat Enterprise Linux 10 that fix this vulnerability. Users should apply the updated packages as described in the Red Hat advisory RHSA-2026:21390 and follow the instructions in https://access.redhat.com/articles/11258. No additional mitigation is required once the update is applied.

Description

A flaw was found in Cockpit. This vulnerability allows a remote attacker to achieve arbitrary command execution on the host by exploiting unsanitized user-controlled parameters within crafted links in the system logs user interface (UI). An attacker can inject shell metacharacters and command substitutions into these parameters, leading to the execution of arbitrary shell commands on the affected system. This could result in a complete system compromise.

References

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