VDB
RHSA-2026%3A21647
RHSA-2026%3A21647
PUBLISHED
CVSS 8 HIGH
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.
Risk Scores
CVSS 3.1
8
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | cockpit-debugsource-0:311.3-1.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4) | 311.3-1.el9 |
| Red Hat | cockpit-debugsource-0:311.3-1.el9_4.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4) | 311.3-1.el9 |
| Red Hat | cockpit-0:311.3-1.el9_4.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4) | 311.3-1.el9 |
| Red Hat | cockpit-ws-0:311.3-1.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4) | 311.3-1.el9 |
| Red Hat | cockpit-debugsource-0:311.3-1.el9_4.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4) | 311.3-1.el9 |
| Red Hat | cockpit-debugsource-0:311.3-1.el9_4.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4) | 311.3-1.el9 |
| Red Hat | cockpit-system-0:311.3-1.el9_4.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4) | 311.3-1.el9 |
| Red Hat | cockpit-0:311.3-1.el9_4.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4) | 311.3-1.el9 |
| Red Hat | cockpit-debugsource-0:311.3-1.el9_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4) | 311.3-1.el9 |
| Red Hat | cockpit-ws-0:311.3-1.el9_4.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4) | 311.3-1.el9 |
| Red Hat | cockpit-0:311.3-1.el9_4.src as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4) | 311.3-1.el9 |
| Red Hat | cockpit-0:311.3-1.el9_4.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4) | 311.3-1.el9 |
| Red Hat | cockpit-debuginfo-0:311.3-1.el9_4.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4) | 311.3-1.el9 |
| Red Hat | cockpit-pcp-0:311.3-1.el9_4.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4) | 311.3-1.el9 |
| Red Hat | cockpit-debuginfo-0:311.3-1.el9_4.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4) | 311.3-1.el9 |
| Red Hat | cockpit-bridge-0:311.3-1.el9_4.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4) | 311.3-1.el9 |
| Red Hat | cockpit-packagekit-0:311.3-1.el9_4.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4) | 311.3-1.el9 |
| Red Hat | cockpit-ws-0:311.3-1.el9_4.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4) | 311.3-1.el9 |
| Red Hat | cockpit-pcp-0:311.3-1.el9_4.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4) | 311.3-1.el9 |
| Red Hat | cockpit-doc-0:311.3-1.el9_4.noarch as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4) | 311.3-1.el9 |
…and 38 more
Timeline
- May 28, 2026 CVE Published
- May 28, 2026 CVE Updated
- May 28, 2026 Distribution Patch
- May 28, 2026 Distribution Patch
- May 28, 2026 Security Advisory
- May 28, 2026 Security Advisory
References
- https://access.redhat.com/errata/RHSA-2026:21647 advisory
- https://access.redhat.com/security/updates/classification/#important advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2451155 issue
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_21647.json advisory
- https://access.redhat.com/security/cve/CVE-2026-4802 advisory
- https://www.cve.org/CVERecord?id=CVE-2026-4802 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-4802 advisory
- https://github.com/cockpit-project/cockpit/blob/e204cd130/pkg/systemd/logsJournal.jsx#L206-L210 advisory