{"cve":"CVE-2026-55074","nvd":{"published":"2026-09-21T15:17:29.627","modified":"2026-09-24T21:25:27.050","status":"Deferred","description":"Ansible FreeBSD Jail Connection Plugin is an Ansible connection plugin for FreeBSD Jails via jexec. Through version 1.3.0, the jailexec connection plugin's put_file resolved a transfer's destination to a path on the jail host ( + ) and ran mkdir -p and mv there as root on the host. Those commands follow symbolic links, and the path was operated on outside the jail, so a symlink existing inside the jail was followed by the host-side, root-privileged mv. A party controlling content inside a managed jail (the jail's root, or any process able to create a symlink in a directory an Ansible task later writes to) can therefore cause an arbitrary root-owned write on the host, outside the jail — a full jail escape. Arbitrary root-owned host writes are readily escalated to host compromise (e.g. cron, rc.d, authorized_keys). Preconditions for this vulnerability are that the operator runs a copy/template/fetch-style task (anything using put_file) against the jail, and the attacker can place a symlink inside the jail at or above the task's destination before the transfer runs. This issue has been fixed in version 2.0.0.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","score":8.2},"cvss_v3":null,"cwes":["CWE-59"],"references":["https://github.com/chofstede/ansible_jailexec/blob/main/docs/security/advisory-2.0.0-jail-escape.md","https://github.com/chofstede/ansible_jailexec/commit/6e80eecb2db7aebd1258fded6ae5c3aba1dd4123","https://github.com/chofstede/ansible_jailexec/pull/6","https://github.com/chofstede/ansible_jailexec/releases/tag/v2.0.0","https://github.com/chofstede/ansible_jailexec/security/advisories/GHSA-cxgv-hp74-jj7r"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:55:23.253742848+00:00"},"epss":{"cve":"CVE-2026-55074","score":0.00441,"percentile":0.38378,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-cxgv-hp74-jj7r","url":"https://osv.dev/vulnerability/GHSA-cxgv-hp74-jj7r","summary":"Ansible FreeBSD Jail Connection Plugin: Jail escape via symlink following in put_file (host-side root mv)","modified":"2026-08-19T12:55:55.015626437Z","packages":[{"ecosystem":"PyPI","name":"ansible-jailexec","purl":"pkg:pypi/ansible-jailexec","ranges":["<2.0.0"],"fixed":["2.0.0"]}]},{"id":"PYSEC-2026-3658","url":"https://osv.dev/vulnerability/PYSEC-2026-3658","summary":"Ansible FreeBSD Jail Connection Plugin: Jail escape via symlink following in put_file (host-side root mv)","modified":"2026-08-19T12:45:04.208166170Z","packages":[{"ecosystem":"PyPI","name":"ansible-jailexec","purl":"pkg:pypi/ansible-jailexec","ranges":["<2.0.0"],"fixed":["2.0.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}