{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2.6.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2d4ebafec5c524408b3d4ac1198df909cb7ac8c1"
            },
            {
              "fixed": "e516ce508e1481504cadbfbf62052364339093bc"
            },
            {
              "fixed": "03e3a243b6f07d17c60ce0a182adee7cf4c424eb"
            }
          ],
          "repo": "https://github.com/openbao/openbao",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-59w7-v8rr-pr4p"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/71xxx/CVE-2026-71543.json"
  },
  "details": "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 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.",
  "id": "CVE-2026-71543",
  "modified": "2026-09-23T03:30:55.135371955Z",
  "published": "2026-09-21T15:03:59.159Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/hashicorp/vault/blob/main/CHANGELOG.md#201"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openbao/openbao/releases/tag/v2.6.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/71xxx/CVE-2026-71543.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/openbao/openbao/security/advisories/GHSA-59w7-v8rr-pr4p"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-71543"
    },
    {
      "type": "FIX",
      "url": "https://github.com/openbao/openbao/commit/2d4ebafec5c524408b3d4ac1198df909cb7ac8c1"
    },
    {
      "type": "FIX",
      "url": "https://github.com/openbao/openbao/commit/e516ce508e1481504cadbfbf62052364339093bc"
    },
    {
      "type": "FIX",
      "url": "https://github.com/openbao/openbao/pull/3401"
    },
    {
      "type": "FIX",
      "url": "https://github.com/openbao/openbao/pull/3473"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "OpenBao's Templated Policies Allow Privilege Escalation via Wildcard Characters"
}