Vulnerability details
CVE-2026-4802
Cockpit: cockpit: arbitrary command execution via crafted links in system logs ui
CVSS 3.1
8.0High
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.0High | 3.1 | CVEProject cvelistV5 (CNA) (redhat) | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H |
| 8.0High | 3.1 | CVEProject cvelistV5 (CNA) (redhat-SADP) | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| No product information recorded. | |||
References and advisories
15- 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://access.redhat.com/security/cve/CVE-2026-4802 vdb-entryx_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2451155 issue-trackingx_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4802.json x_sadp-csaf-vex
- https://access.redhat.com/errata/RHSA-2026:21390 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:21676 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:21395 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:21394 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:21647 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:21392 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:21468 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:21700 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:21516 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:21515 vendor-advisoryx_refsource_REDHAT
Kolun on Telegram @kolunsec
Exploited CVEs, key news and a daily digest
Alerts for this product's next CVEsFollow the product to get new vulnerabilities on Telegram.
Details
- Published
- 2026-05-11
- Last updated
- 2026-11-05
- State
- Published
- Assigner (CNA)
- redhat
Exploit prediction (EPSS)
1.01%
Probability of exploitation in 30 days
63.4%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-78Improper Neutralization of Special Elements used in an OS Command