CVE-2026-4802
highA flaw was found in Cockpit.
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.
CVSS
8.0
8.0 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (secalert@redhat.com)
Timeline (UTC)
Published: 2026-05-11 14:16
Modified: 2026-11-04 23:17
NVD status: Awaiting Analysis
Last synced 39 minutes ago
Verified against the source API 2026-11-04 23:38 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://access.redhat.com/errata/RHSA-2026:21390 secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:21392 secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:21394 secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:21395 secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:21468 secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:21515 secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:21516 secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:21647 secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:21676 secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:21700 secalert@redhat.com
- https://access.redhat.com/security/cve/CVE-2026-4802 secalert@redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2451155 secalert@redhat.com
- https://github.com/cockpit-project/cockpit/blob/e204cd130/pkg/systemd/logsJournal.jsx#L206... secalert@redhat.com
- http://www.openwall.com/lists/oss-security/2026/05/20/19 af854a3a-2127-422b-91ae-364da2661108
- https://access.redhat.com/errata/RHSA-2026:21390 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- https://access.redhat.com/errata/RHSA-2026:21392 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- https://access.redhat.com/errata/RHSA-2026:21394 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- https://access.redhat.com/errata/RHSA-2026:21395 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- https://access.redhat.com/errata/RHSA-2026:21468 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- https://access.redhat.com/errata/RHSA-2026:21515 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- https://access.redhat.com/errata/RHSA-2026:21516 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- https://access.redhat.com/errata/RHSA-2026:21647 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- https://access.redhat.com/errata/RHSA-2026:21676 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- https://access.redhat.com/errata/RHSA-2026:21700 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- https://access.redhat.com/security/cve/CVE-2026-4802 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Data sources
NVD CVE API 2.0 — fetched 2026-11-04 23:38 UTC · record ↗

