RCE in Notifiarr Dockwatch
CVE-2026-58455
Dockwatch through 0.6.567 contains an unauthenticated OS command injection vulnerability that allows remote attackers to execute arbitrary shell commands by exploiting a missing exit() after an authentication redirect in loader.php combined with unsanitized input passed to shell_exec() in ajax/compose.php. Attackers can seed the required session flag through the incomplete auth check, then inject arbitrary commands via the composePath POST parameter in the composePull action to achieve full host compromise, facilitated by the standard deployment mounting of the Docker socket.
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.049 (91.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Notifiarr Dockwatch — versions 0
Weakness classification (CWE)
References
- disclosure@vulncheck.com (issue-tracking)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-58455?
- CVE-2026-58455 is a critical-severity vulnerability in Notifiarr Dockwatch, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-07-02.
- How severe is CVE-2026-58455?
- Critical severity. CVSS v3 base score is 9.8 out of 10.