{"id":"CVE-2026-84714","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-84714","generatedAt":"2026-10-28T06:35:35.766Z","title":"Because sanitize_jinja() is the sole guard on several launch-time fields — ad-hoc command module_args, Machine-credential username / become_method / become_user, and inventory host names — a low-privileged user can inject Jinja that ansible-core…","description":"A flaw was found in the automation-controller input-validation\n                  guard sanitize_jinja(). The function uses two regular\n                  expressions to reject user-supplied Jinja, but the patterns\n                  stop at the first interior '}' or '%' character, so a Jinja\n                  expression containing an inner brace (for example an empty\n                  dict) is accepted while remaining valid Jinja. Because\n                  sanitize_jinja() is the sole guard on several launch-time\n                  fields — ad-hoc command module_args, Machine-credential\n                  username / become_method / become_user, and inventory host\n                  names — a low-privileged user can inject Jinja that ansible-core\n                  evaluates in the execution environment. This enables execution\n                  of arbitrary commands in the execution environment (bypassing an\n                  administrator's AD_HOC_COMMANDS module allowlist) and disclosure\n                  of secrets belonging to credentials the attacker cannot read\n                  (by templating a co-attached credential's injected environment\n                  variables), across the credential access-control boundary.","published":"2026-09-23T20:17:18.000Z","lastModified":"2026-09-24T15:17:45.000Z","status":"Awaiting Analysis","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"3.1","score":7.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N"},"cwe":["CWE-184"],"affected":[],"epss":{"score":0.00293,"percentile":0.21757,"date":"2026-10-27","history":[{"date":"2026-09-24","score":0.00293,"percentile":0.19415}]},"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 (0.29%). 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":"2026-09-23T20:17:18.000Z","detail":{"score":"7.1","severity":"HIGH","publishedAt":"2026-09-23T20:17:18.083Z"},"summary":"New CVE, high severity (CVSS 7.1)."}],"references":[{"url":"https://access.redhat.com/errata/RHSA-2026:71113","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:71114","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:71177","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:71179","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2026-84714","source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2527198","source":"secalert@redhat.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-84714","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."}