CVE-2026-4802Cockpit: cockpit: arbitrary command execution via crafted links in system logs ui
Updated under an hour ago ()
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It affects Red Hat Enterprise Linux 10 and 5 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-78
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Awaiting Analysis
- Record last updated
- Jul 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux | from 0:356.2-1.el10_2 not affected | CNA record |
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support redhat:enterprise_linux_eus | from 0:334.2-1.el10_0 not affected | CNA record |
from 0:264.3-1.el8_6 not affected | CNA record | |
from 0:264.3-1.el8_6 not affected | CNA record | |
from 0:264.3-1.el8_6 not affected | CNA record | |
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support redhat:rhel_eus | from 0:311.3-1.el9_4 not affected | CNA record |
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux | from 0:356.2-1.el10_2 not affected | CISA ADP |
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support redhat:enterprise_linux_eus | from 0:334.2-1.el10_0 not affected | CISA ADP |
from 0:264.3-1.el8_6 not affected | CISA ADP | |
from 0:264.3-1.el8_6 not affected | CISA ADP | |
from 0:264.3-1.el8_6 not affected | CISA ADP | |
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support redhat:rhel_eus | from 0:311.3-1.el9_4 not affected | CISA ADP |
References
- https://access.redhat.com/errata/RHSA-2026:21390vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:21392vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:21394vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:21395vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:21468vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:21515vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:21516vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:21647vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:21676vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:21700vendor-advisory, x-refsource-redhat
- https://access.redhat.com/security/cve/CVE-2026-4802vdb-entry, x-refsource-redhat
- https://bugzilla.redhat.com/show_bug.cgi?id=2451155issue-tracking, x-refsource-redhat
- https://github.com/cockpit-project/cockpit/blob/e204cd130/pkg/systemd/logsJournal.jsx#L206-L210
- http://www.openwall.com/lists/oss-security/2026/05/20/19
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4802.json
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.