{"id":"CVE-2026-112305","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-112305","generatedAt":"2026-10-28T02:59:17.253Z","title":"Semaphore UI through 2.19.16 contains a remote code execution vulnerability that allows users with the task_runner role to override protected Ansible variables by supplying arbitrary keys in the task environment JSON.","description":"Semaphore UI through 2.19.16 contains a remote code execution vulnerability that allows users with the task_runner role to override protected Ansible variables by supplying arbitrary keys in the task environment JSON. Attackers can POST tasks setting ansible_ssh_common_args with a ProxyCommand or ansible_connection=local to execute commands as the Semaphore server user, exposing encryption keys, SSH keys and stored secrets.","published":"2026-10-19T16:17:06.000Z","lastModified":"2026-10-19T18:17:05.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":8.7,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-915"],"affected":[],"epss":{"score":0.00563,"percentile":0.46563,"date":"2026-10-26","history":[{"date":"2026-10-20","score":0.00563,"percentile":0.45763}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.56%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-19T16:17:06.000Z","detail":{"score":"8.7","severity":"HIGH","publishedAt":"2026-10-19T16:17:06.400Z"},"summary":"New CVE, high severity (CVSS 8.7)."}],"references":[{"url":"https://github.com/semaphoreui/semaphore","source":"disclosure@vulncheck.com"},{"url":"https://github.com/semaphoreui/semaphore/blob/v2.19.16/api/projects/tasks.go#L39-L75","source":"disclosure@vulncheck.com"},{"url":"https://github.com/semaphoreui/semaphore/blob/v2.19.16/services/tasks/TaskRunner.go#L395-L431","source":"disclosure@vulncheck.com"},{"url":"https://github.com/semaphoreui/semaphore/pull/3888","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/semaphore-ui-through-2.19.16-rce-via-task-environment-ansible-variable-override","source":"disclosure@vulncheck.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-112305","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}