{"id":"CVE-2026-71543","title":"OpenBao is an open source identity-based secrets management system","summary":"OpenBao is an open source identity-based secrets management system. Prior to 2.6.0, templated ACL, PKI, and SSH policies could substitute attacker-controlled identity data without rejecting syntax-significant characters. In ACL templated…","severity":"none","cwe":["CWE-863"],"published":"2026-09-21","updated":"2026-09-21","sourceUpdated":"2026-09-21T15:17:31.173","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-71543","references":[{"url":"https://github.com/hashicorp/vault/blob/main/CHANGELOG.md#201","label":"security-advisories@github.com"},{"url":"https://github.com/openbao/openbao/commit/2d4ebafec5c524408b3d4ac1198df909cb7ac8c1","label":"security-advisories@github.com"},{"url":"https://github.com/openbao/openbao/commit/e516ce508e1481504cadbfbf62052364339093bc","label":"security-advisories@github.com"},{"url":"https://github.com/openbao/openbao/pull/3401","label":"security-advisories@github.com"},{"url":"https://github.com/openbao/openbao/pull/3473","label":"security-advisories@github.com"},{"url":"https://github.com/openbao/openbao/releases/tag/v2.6.0","label":"security-advisories@github.com"},{"url":"https://github.com/openbao/openbao/security/advisories/GHSA-59w7-v8rr-pr4p","label":"security-advisories@github.com"}],"tags":["nvd"],"ingestedAt":"2026-09-21T15:19:25.701Z","slug":"CVE-2026-71543","body":"## Overview\n\nOpenBao is an open source identity-based secrets management system. Prior to 2.6.0, templated ACL, PKI, and SSH policies could substitute attacker-controlled identity data without rejecting syntax-significant characters. In ACL templated policies, asterisks, plus signs, and slashes could alter path matching. In PKI allowed_uri_sans_template and allowed_domains policies, an asterisk could broaden certificate issuance to unauthorized domains. In SSH allowed_users and allowed_domains policies, a comma could add unauthorized principals. Exploitation requires a deployment to use templated policy data that users can freely modify; templates based on the randomly generated identity.entity.id value are not affected. This could allow privilege escalation, unauthorized access, and unauthorized certificate issuance. This issue is fixed in version 2.6.0.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}