{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-20904",
        "assignerOrgId": "88ee5874-cf24-4952-aea0-31affedb7ff2",
        "state": "PUBLISHED",
        "assignerShortName": "Gitea",
        "dateReserved": "2026-01-08T23:02:37.537Z",
        "datePublished": "2026-01-22T22:01:51.762Z",
        "dateUpdated": "2026-01-23T21:53:53.397Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "vendor": "Gitea",
                    "product": "Gitea Open Source Git Server",
                    "versions": [
                        {
                            "version": "0",
                            "lessThanOrEqual": "1.25.3",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Gitea does not properly validate ownership when toggling OpenID URI visibility. An authenticated user may be able to change the visibility settings of other users' OpenID identities."
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-284",
                            "description": "CWE-284: Improper Access Control",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-639",
                            "description": "CWE-639: Authorization Bypass Through User-Controlled Key",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-jrpc-w85r-hgqx",
                    "name": "GitHub Security Advisory",
                    "tags": [
                        "vendor-advisory"
                    ]
                },
                {
                    "url": "https://github.com/go-gitea/gitea/pull/36346",
                    "name": "GitHub Pull Request #36346",
                    "tags": [
                        "patch"
                    ]
                },
                {
                    "url": "https://github.com/go-gitea/gitea/pull/36361",
                    "name": "GitHub Pull Request #36361",
                    "tags": [
                        "patch"
                    ]
                },
                {
                    "url": "https://github.com/go-gitea/gitea/releases/tag/v1.25.4",
                    "name": "Gitea v1.25.4 Release",
                    "tags": [
                        "release-notes"
                    ]
                },
                {
                    "url": "https://blog.gitea.com/release-of-1.25.4/",
                    "name": "Gitea v1.25.4 Release Blog Post",
                    "tags": [
                        "release-notes"
                    ]
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "spingARbor",
                    "type": "reporter"
                }
            ],
            "title": "Gitea: Broken access control in OpenID visibility toggle enables cross-user visibility changes",
            "providerMetadata": {
                "orgId": "88ee5874-cf24-4952-aea0-31affedb7ff2",
                "shortName": "Gitea",
                "dateUpdated": "2026-01-22T22:01:51.762Z"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 6.5,
                            "attackVector": "NETWORK",
                            "baseSeverity": "MEDIUM",
                            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
                            "integrityImpact": "HIGH",
                            "userInteraction": "NONE",
                            "attackComplexity": "LOW",
                            "availabilityImpact": "NONE",
                            "privilegesRequired": "LOW",
                            "confidentialityImpact": "NONE"
                        }
                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-01-23T17:52:05.088654Z",
                                "id": "CVE-2026-20904",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-01-23T21:53:53.397Z"
                }
            }
        ]
    }
}