{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-63131",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-07-15T16:54:55.817Z",
        "datePublished": "2026-09-23T17:59:16.337Z",
        "dateUpdated": "2026-09-23T17:59:16.337Z"
    },
    "containers": {
        "cna": {
            "title": "OpenBao LIST ACL bypass: a trailing-slash LIST request skips a more-specific deny rule (unported Vault v2.0.3 fix)",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-863",
                            "lang": "en",
                            "description": "CWE-863: Incorrect Authorization",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 6,
                        "baseSeverity": "MEDIUM",
                        "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"
                    }
                }
            ],
            "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"
                }
            ],
            "affected": [
                {
                    "vendor": "openbao",
                    "product": "openbao",
                    "versions": [
                        {
                            "version": "< 2.6.0",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-09-23T17:59:16.337Z"
            },
            "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."
                }
            ],
            "source": {
                "advisory": "GHSA-xp3c-3jw3-4vcr",
                "discovery": "UNKNOWN"
            }
        }
    }
}