CVE-2026-4802
CVE-2026-4802 · Cockpit: cockpit: arbitrary command execution via crafted links in system logs ui
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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 · EPSS 1.0% · Public exploit · Fix available
- Published
- Updated
Stack: system
Affected products and versions
red hat enterprise linux 10
- Versions
- ≥ 0:356.2-1.el10_2: Not affected (rpm)
No fix published
red hat enterprise linux 10.0 extended update support
- Versions
- ≥ 0:334.2-1.el10_0: Not affected (rpm)
No fix published
red hat enterprise linux 8
- Versions
- ≥ 0:310.8-1.el8_10: Not affected (rpm)
No fix published
red hat enterprise linux 8.6 advanced mission critical update support
- Versions
- ≥ 0:264.3-1.el8_6: Not affected (rpm)
No fix published
red hat enterprise linux 8.6 telecommunications update service
- Versions
- ≥ 0:264.3-1.el8_6: Not affected (rpm)
No fix published
red hat enterprise linux 8.6 update services for sap solutions
- Versions
- ≥ 0:264.3-1.el8_6: Not affected (rpm)
No fix published
red hat enterprise linux 8.8 telecommunications update service
- Versions
- ≥ 0:286.2-1.el8_8: Not affected (rpm)
No fix published
red hat enterprise linux 8.8 update services for sap solutions
- Versions
- ≥ 0:286.2-1.el8_8: Not affected (rpm)
No fix published
red hat enterprise linux 9
- Versions
- ≥ 0:356.2-1.el9_8: Not affected (rpm)
No fix published
red hat enterprise linux 9.0 update services for sap solutions
- Versions
- ≥ 0:264.3-1.el9_0: Not affected (rpm)
No fix published
red hat enterprise linux 9.2 update services for sap solutions
- Versions
- ≥ 0:286.3-1.el9_2: Not affected (rpm)
No fix published
red hat enterprise linux 9.4 extended update support
- Versions
- ≥ 0:311.3-1.el9_4: Not affected (rpm)
No fix published
red hat enterprise linux 9.6 extended update support
- Versions
- ≥ 0:334.3-1.el9_6: Not affected (rpm)
No fix published
red hat enterprise linux 7
No fix published
cockpit Debian:12
- Versions
- 287-1
- 287.1-0+deb12u1
- 287.1-0+deb12u2
- 287.1-0+deb12u3
- 288.1-1
- 289-1
- 290-1
- 291-1
- 292-1
- 293-1
- 294-1
- 294.1-1
- 295-1
- 296-1
- 297-1
- 297-1~bpo12+1
- 298-1
- 299-1
- 299-1~bpo12+1
- 300-1
- 300.1-1
- 300.1-1~bpo12+1
- 301-1
- 301-1~bpo12+1
- 302-1
- 303-1
- 303-1~bpo12+1
- 304-1
- 305-1
- 305-1~bpo12+1
- 306-1
- 306-1~bpo12+1
- 307-1
- 307-1~bpo12+1
- 308-1
- 308-1~bpo12+1
- 309-1
- 309-1~bpo12+1
- 310-1
- 310.1-1
- 310.1-1~bpo12+1
- 311-1
- 311-1~bpo12+1
- 312-1
- 313-1
- 314-1
- 316-1
- 317-1
- 317-2
- 317-3
- 317-4
- 317-5
- 318-1
- 318-2
- 318-3
- 318-4
- 318-4~bpo12+1
- 319-1
- 319-1~bpo12+1
- 320-1
- 320-1~bpo12+1
- 321-1
- 322-1
- 322-1~bpo12+1
- 323-1
- 323-1~bpo12+1
- 324-1
- 324-1~bpo12+1
- 325-1
- 325-1~bpo12+1
- 326-1
- 327-1
- 327-1~bpo12+1
- 328-1
- 329-1
- 329-1~bpo12+1
- 330-1
- 330-2
- 330-3
- 330-4
- 331-1
- 331-1~bpo12+1
- 332-1
- 333-1
- 333-1~bpo12+1
- 334-1
- 335-1
- 335-2
- 335-2~bpo12+1
- 336-1
- 337-1
- 337-1~bpo12+1
- 338-1
- 339-1
- 340-1
- 341.1-1
- 342-1
- 343-1
- 345-1
- 345-1~bpo13+1
- 346-1
- 346-1~bpo13+1
- 348-1
- 348-1~bpo13+1
- 350-1
- 350-1~bpo13+1
- 352-1
- 352-1~bpo13+1
- 353.1-1
- 353.1-1~bpo13+1
- 354-1
- 354-1~bpo13+1
- 355-1
- 355-1~bpo13+1
- 356-1
- 356-1~bpo13+1
- 358-1
- 358-1~bpo13+1
- 360-1
- 360-1~bpo13+1
- 362-1
- 362-1~bpo13+1
- 365-1
- 365-1~bpo13+1
- 366-1
- 366-1~bpo13+1
- 367-1
- 367-1~bpo13+1
- 368-1
- 368-1~bpo13+1
- 370-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
cockpit Debian:13
- Versions
- 337-1
- 337-1+deb13u1
- Affected ranges
- ECOSYSTEM: < 337-1+deb13u2
Update to 337-1+deb13u2
cockpit Debian:14
- Versions
- 337-1
- 338-1
- 339-1
- 340-1
- 341.1-1
- 342-1
- 343-1
- 345-1
- 345-1~bpo13+1
- 346-1
- 346-1~bpo13+1
- 348-1
- 348-1~bpo13+1
- 350-1
- 350-1~bpo13+1
- 352-1
- 352-1~bpo13+1
- 353.1-1
- 353.1-1~bpo13+1
- 354-1
- 354-1~bpo13+1
- 355-1
- 355-1~bpo13+1
- 356-1
- 356-1~bpo13+1
- 358-1
- 358-1~bpo13+1
- 360-1
- 360-1~bpo13+1
- 362-1~bpo13+1
- Affected ranges
- ECOSYSTEM: < 362-1
Update to 362-1
cockpit Ubuntu:18.04:LTS
- Versions
- 151-1
- 156-1
- 157-1
- 158-1
- 160-1
- 161-1
- 162-1
- 163-1
- 164-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
cockpit Ubuntu:20.04:LTS
- Versions
- 202.1-1
- 204-1
- 206-1
- 207-1
- 208-1
- 210-1
- 211-1
- 212-1
- 213-1
- 214.1-1
- 215-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
cockpit Ubuntu:22.04:LTS
- Versions
- 252-1
- 256-1
- 257-1
- 258-1
- 259-1
- 260-1
- 261-1
- 262-1
- 263-1
- 264-1
- 264-1ubuntu0.22.04.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
cockpit Ubuntu:24.04:LTS
- Versions
- 300.1-1
- 303-1
- 304-1
- 305-1
- 306-1
- 307-1
- 308-1
- 309-1
- 310.1-1
- 311-1
- 312-1build2
- 314-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
cockpit Ubuntu:25.10
- Versions
- 333-1
- 337-1
- 339-1
- 342-1
- 343-1
- 345-1
- 346-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
cockpit Ubuntu:26.10
- Versions
- 360-1
- 362-1
- 365-1
- 367-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
cockpit Ubuntu:26.04:LTS
- Versions
- 346-1
- 348-1
- 350-1
- 352-1
- 353.1-1
- 354-1
- 355-1
- 356-1
- 360-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
Original sources
- https://access.redhat.com/errata/RHSA-2026:21390
- https://access.redhat.com/errata/RHSA-2026:21392
- https://access.redhat.com/errata/RHSA-2026:21394
- https://access.redhat.com/errata/RHSA-2026:21395
- https://access.redhat.com/errata/RHSA-2026:21468
- https://access.redhat.com/errata/RHSA-2026:21515
- https://access.redhat.com/errata/RHSA-2026:21516
- https://access.redhat.com/errata/RHSA-2026:21647
- https://access.redhat.com/errata/RHSA-2026:21676
- https://access.redhat.com/errata/RHSA-2026:21700
- https://access.redhat.com/security/cve/CVE-2026-4802
- https://bugzilla.redhat.com/show_bug.cgi?id=2451155
- 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
- https://nvd.nist.gov/vuln/detail/CVE-2026-4802