{"id":"CVE-2026-112305","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-112305","summary":"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…","details":"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":"2026-10-19T16:17:06.400","modified":"2026-10-19T16:17:06.523","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/semaphoreui/semaphore/pull/3888","label":"semaphoreui/semaphore#3888"},"references":[{"type":"WEB","url":"https://github.com/semaphoreui/semaphore"},{"type":"WEB","url":"https://github.com/semaphoreui/semaphore/blob/v2.19.16/api/projects/tasks.go#L39-L75"},{"type":"WEB","url":"https://github.com/semaphoreui/semaphore/blob/v2.19.16/services/tasks/TaskRunner.go#L395-L431"},{"type":"WEB","url":"https://github.com/semaphoreui/semaphore/pull/3888"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/semaphore-ui-through-2.19.16-rce-via-task-environment-ansible-variable-override"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-10-19T16:17:06.523"}}