{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "openbao",
          "vendor": "openbao",
          "versions": [
            {
              "status": "affected",
              "version": "< 2.6.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 6,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-863",
              "description": "CWE-863: Incorrect Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-23T17:59:16.337Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/openbao/openbao/security/advisories/GHSA-xp3c-3jw3-4vcr",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/openbao/openbao/security/advisories/GHSA-xp3c-3jw3-4vcr"
        },
        {
          "name": "https://github.com/openbao/openbao/pull/3389",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/openbao/openbao/pull/3389"
        },
        {
          "name": "https://github.com/openbao/openbao/pull/3474",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/openbao/openbao/pull/3474"
        },
        {
          "name": "https://github.com/openbao/openbao/commit/2e9625d6cebe4639d051ef53dd6ce7c49914ae6a",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/openbao/openbao/commit/2e9625d6cebe4639d051ef53dd6ce7c49914ae6a"
        },
        {
          "name": "https://github.com/openbao/openbao/commit/f58d848c139e5ba71aa63103fcfe101972b999fc",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/openbao/openbao/commit/f58d848c139e5ba71aa63103fcfe101972b999fc"
        },
        {
          "name": "https://github.com/hashicorp/vault/blob/main/CHANGELOG.md#203",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/hashicorp/vault/blob/main/CHANGELOG.md#203"
        },
        {
          "name": "https://github.com/openbao/openbao/releases/tag/v2.6.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/openbao/openbao/releases/tag/v2.6.0"
        }
      ],
      "source": {
        "advisory": "GHSA-xp3c-3jw3-4vcr",
        "discovery": "UNKNOWN"
      },
      "title": "OpenBao LIST ACL bypass: a trailing-slash LIST request skips a more-specific deny rule (unported Vault v2.0.3 fix)"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-63131",
    "datePublished": "2026-09-23T17:59:16.337Z",
    "dateReserved": "2026-07-15T16:54:55.817Z",
    "dateUpdated": "2026-09-23T17:59:16.337Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}