cve-2026-63131

MEDIUM CVSS 6.0 opencve
Description

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.

Timeline
Published
2026-09-23 19:17 UTC
Last Modified
2026-09-23
CVSS Details

CVSS details not available.

Affected Products

No product information available.

Weaknesses (CWE)
CWE-863
CVSS metrics
Version Base Severity Vector Exploitability Impact Source
4.0 6.0 MEDIUM 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 mitre
4.0 6.0 MEDIUM 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X nvd
4.0 6.0 MEDIUM 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 opencve
References

No references available.

Linked Vulnerabilities

No linked vulnerabilities found.

{
  "advisories": [
    {
      "id": "GHSA-xp3c-3jw3-4vcr",
      "source": "ghsa",
      "title": "OpenBao Skips Stricter Deny Policy for LIST operations",
      "url": "https://github.com/advisories/GHSA-xp3c-3jw3-4vcr"
    }
  ],
  "cve": "CVE-2026-63131",
  "enrichment": {
    "affected": [
      {
        "configurations": [
          {
            "platform": null,
            "status": "affected",
            "versions": {
              "scheme": "semver",
              "value": "[0,2.6.0)"
            }
          }
        ],
        "enrichment": {
          "confidence": 100.0,
          "confidence_source": "matching",
          "scores": [
            {
              "score": 100.0,
              "source": "matching"
            }
          ]
        },
        "original": {
          "product": "openbao",
          "source": "cna",
          "vendor": "openbao"
        },
        "product": "openbao",
        "vendor": "openbao"
      }
    ],
    "created": "2026-09-23T20:00:08.602373+00:00",
    "updated": "2026-09-23T20:00:08.602401+00:00",
    "vendors": [
      "openbao",
      "openbao$PRODUCT$openbao"
    ]
  },
  "mitre": {
    "cpes": [],
    "created": "2026-09-23T17:59:16.337000+00:00",
    "description": "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": {
      "cvssV2_0": {},
      "cvssV3_0": {},
      "cvssV3_1": {},
      "cvssV4_0": {
        "score": 6,
        "vector": "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"
      }
    },
    "mitre_repo_path": "cves/2026/63xxx/CVE-2026-63131.json",
    "references": [
      "https://github.com/hashicorp/vault/blob/main/CHANGELOG.md#203",
      "https://github.com/openbao/openbao/commit/2e9625d6cebe4639d051ef53dd6ce7c49914ae6a",
      "https://github.com/openbao/openbao/commit/f58d848c139e5ba71aa63103fcfe101972b999fc",
      "https://github.com/openbao/openbao/pull/3389",
      "https://github.com/openbao/openbao/pull/3474",
      "https://github.com/openbao/openbao/releases/tag/v2.6.0",
      "https://github.com/openbao/openbao/security/advisories/GHSA-xp3c-3jw3-4vcr"
    ],
    "title": "OpenBao LIST ACL bypass: a trailing-slash LIST request skips a more-specific deny rule (unported Vault v2.0.3 fix)",
    "updated": "2026-09-23T17:59:16.337000+00:00",
    "vendors": [],
    "weaknesses": [
      "CWE-863"
    ]
  },
  "nvd": {
    "cpes": [],
    "created": "2026-09-23T19:17:34.497000+00:00",
    "description": "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": {
      "cvssV2_0": {},
      "cvssV3_0": {},
      "cvssV3_1": {},
      "cvssV4_0": {
        "score": 6.0,
        "vector": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
      }
    },
    "nvd_repo_path": "2026/CVE-2026-63131.json",
    "references": [
      "https://github.com/hashicorp/vault/blob/main/CHANGELOG.md#203",
      "https://github.com/openbao/openbao/commit/2e9625d6cebe4639d051ef53dd6ce7c49914ae6a",
      "https://github.com/openbao/openbao/commit/f58d848c139e5ba71aa63103fcfe101972b999fc",
      "https://github.com/openbao/openbao/pull/3389",
      "https://github.com/openbao/openbao/pull/3474",
      "https://github.com/openbao/openbao/releases/tag/v2.6.0",
      "https://github.com/openbao/openbao/security/advisories/GHSA-xp3c-3jw3-4vcr"
    ],
    "title": null,
    "updated": "2026-09-23T19:17:34.497000+00:00",
    "vendors": [],
    "weaknesses": [
      "CWE-863"
    ]
  },
  "opencve": {
    "changes": [
      {
        "created": "2026-09-23T18:30:00+00:00",
        "data": [
          {
            "details": {
              "new": "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.",
              "old": null
            },
            "type": "description"
          },
          {
            "details": {
              "new": "OpenBao LIST ACL bypass: a trailing-slash LIST request skips a more-specific deny rule (unported Vault v2.0.3 fix)",
              "old": null
            },
            "type": "title"
          },
          {
            "details": {
              "added": [
                "CWE-863"
              ],
              "removed": []
            },
            "type": "weaknesses"
          },
          {
            "details": {
              "added": [
                "https://github.com/hashicorp/vault/blob/main/CHANGELOG.md#203",
                "https://github.com/openbao/openbao/commit/2e9625d6cebe4639d051ef53dd6ce7c49914ae6a",
                "https://github.com/openbao/openbao/commit/f58d848c139e5ba71aa63103fcfe101972b999fc",
                "https://github.com/openbao/openbao/pull/3389",
                "https://github.com/openbao/openbao/pull/3474",
                "https://github.com/openbao/openbao/releases/tag/v2.6.0",
                "https://github.com/openbao/openbao/security/advisories/GHSA-xp3c-3jw3-4vcr"
              ],
              "removed": []
            },
            "type": "references"
          },
          {
            "details": {
              "added": {
                "cvssV4_0": {
                  "score": 6,
                  "vector": "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"
                }
              },
              "removed": {},
              "updated": {}
            },
            "type": "metrics"
          }
        ],
        "id": "43b229cd-d864-41f5-8991-7aa3841b86ce"
      },
      {
        "created": "2026-09-23T20:15:00+00:00",
        "data": [
          {
            "details": [
              "openbao",
              "openbao$PRODUCT$openbao"
            ],
            "type": "first_time"
          },
          {
            "details": {
              "added": [
                "openbao",
                "openbao$PRODUCT$openbao"
              ],
              "removed": []
            },
            "type": "vendors"
          }
        ],
        "id": "f137f456-feb5-43d5-b189-9f369355c1a7"
      }
    ],
    "cpes": {
      "data": [],
      "providers": []
    },
    "created": {
      "data": "2026-09-23T17:59:16.337000+00:00",
      "provider": "mitre"
    },
    "description": {
      "data": "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.",
      "provider": "mitre"
    },
    "metrics": {
      "cvssV2_0": {
        "data": {},
        "provider": null
      },
      "cvssV3_0": {
        "data": {},
        "provider": null
      },
      "cvssV3_1": {
        "data": {},
        "provider": null
      },
      "cvssV4_0": {
        "data": {
          "score": 6,
          "vector": "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"
        },
        "provider": "mitre"
      },
      "epss": {
        "data": {},
        "provider": null
      },
      "kev": {
        "data": {},
        "provider": null
      },
      "ssvc": {
        "data": {},
        "provider": null
      },
      "threat_severity": {
        "data": null,
        "provider": null
      }
    },
    "references": {
      "data": [
        "https://github.com/hashicorp/vault/blob/main/CHANGELOG.md#203",
        "https://github.com/openbao/openbao/commit/2e9625d6cebe4639d051ef53dd6ce7c49914ae6a",
        "https://github.com/openbao/openbao/commit/f58d848c139e5ba71aa63103fcfe101972b999fc",
        "https://github.com/openbao/openbao/pull/3389",
        "https://github.com/openbao/openbao/pull/3474",
        "https://github.com/openbao/openbao/releases/tag/v2.6.0",
        "https://github.com/openbao/openbao/security/advisories/GHSA-xp3c-3jw3-4vcr"
      ],
      "providers": [
        "mitre",
        "nvd"
      ]
    },
    "title": {
      "data": "OpenBao LIST ACL bypass: a trailing-slash LIST request skips a more-specific deny rule (unported Vault v2.0.3 fix)",
      "provider": "mitre"
    },
    "updated": {
      "data": "2026-09-23T20:00:08.602401+00:00",
      "provider": "enrichment"
    },
    "vendors": {
      "data": [
        "openbao",
        "openbao$PRODUCT$openbao"
      ],
      "providers": [
        "enrichment"
      ]
    },
    "weaknesses": {
      "data": [
        "CWE-863"
      ],
      "providers": [
        "mitre",
        "nvd"
      ]
    }
  }
}
View JSON API Download JSON