{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2.6.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2e9625d6cebe4639d051ef53dd6ce7c49914ae6a"
            },
            {
              "fixed": "f58d848c139e5ba71aa63103fcfe101972b999fc"
            },
            {
              "fixed": "03e3a243b6f07d17c60ce0a182adee7cf4c424eb"
            }
          ],
          "repo": "https://github.com/openbao/openbao",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-xp3c-3jw3-4vcr"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63131.json"
  },
  "details": "OpenBao is an open source identity-based secrets management system. Prior to 2.6.0, OpenBao's vault/policy/acl.go could evaluate a broader wildcard ACL grant before more-specific trailing-wildcard ACL paths with capabilities = [\"deny\"] for a LIST operation. When a parent path permitted LIST and a child path was denied, the trailing-slash lookup could therefore allow listing the denied path. Other operation types are outside the repository advisory's affected scope. This issue is fixed in version 2.6.0.",
  "id": "CVE-2026-63131",
  "modified": "2026-09-26T03:30:15.227426638Z",
  "published": "2026-09-23T17:59:16.337Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/hashicorp/vault/blob/main/CHANGELOG.md#203"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openbao/openbao/releases/tag/v2.6.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63131.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/openbao/openbao/security/advisories/GHSA-xp3c-3jw3-4vcr"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63131"
    },
    {
      "type": "FIX",
      "url": "https://github.com/openbao/openbao/commit/2e9625d6cebe4639d051ef53dd6ce7c49914ae6a"
    },
    {
      "type": "FIX",
      "url": "https://github.com/openbao/openbao/commit/f58d848c139e5ba71aa63103fcfe101972b999fc"
    },
    {
      "type": "FIX",
      "url": "https://github.com/openbao/openbao/pull/3389"
    },
    {
      "type": "FIX",
      "url": "https://github.com/openbao/openbao/pull/3474"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "OpenBao LIST ACL bypass: a trailing-slash LIST request skips a more-specific deny rule (unported Vault v2.0.3 fix)"
}