{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-104627",
        "assignerOrgId": "88ee5874-cf24-4952-aea0-31affedb7ff2",
        "state": "PUBLISHED",
        "assignerShortName": "Gitea",
        "dateReserved": "2026-10-14T20:08:45.852Z",
        "datePublished": "2026-10-18T18:51:06.543Z",
        "dateUpdated": "2026-10-19T20:20:15.460Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "88ee5874-cf24-4952-aea0-31affedb7ff2",
                "shortName": "Gitea",
                "dateUpdated": "2026-10-18T18:51:06.543Z"
            },
            "title": "Gitea OpenID account linking without session binding",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "The Gitea OpenID association callback in the security settings accepted a positive OpenID 2.0 assertion without checking that the signed-in user had started the linking. Because OpenID 2.0 allows unsolicited assertions, an attacker-controlled OpenID provider could attach the attacker's identity to the account of a signed-in victim who opened a crafted link, and the attacker could then sign in as the victim through OpenID login, which does not apply the local TOTP or WebAuthn checks. The callback now requires a time-limited `state` value bound to the user."
                }
            ],
            "affected": [
                {
                    "vendor": "Gitea",
                    "product": "Gitea",
                    "packageName": "gitea.dev",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "lessThanOrEqual": "28.1.0",
                            "versionType": "semver"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-mf69-7pqq-86vx",
                    "name": "GitHub Security Advisory GHSA-mf69-7pqq-86vx",
                    "tags": [
                        "vendor-advisory"
                    ]
                },
                {
                    "url": "https://github.com/go-gitea/gitea/pull/39642",
                    "name": "Fix: go-gitea/gitea pull request #39642",
                    "tags": [
                        "patch"
                    ]
                },
                {
                    "url": "https://github.com/go-gitea/gitea/pull/39744",
                    "name": "Fix backport to release/v28: go-gitea/gitea pull request #39744",
                    "tags": [
                        "patch"
                    ]
                },
                {
                    "url": "https://blog.gitea.com/release-of-28.2.0/",
                    "name": "Gitea 28.2.0 release announcement",
                    "tags": [
                        "release-notes"
                    ]
                },
                {
                    "url": "https://github.com/go-gitea/gitea/releases/tag/v28.2.0",
                    "name": "go-gitea/gitea v28.2.0 release",
                    "tags": [
                        "release-notes"
                    ]
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "type": "CWE",
                            "cweId": "CWE-287",
                            "description": "CWE-287: Improper Authentication"
                        },
                        {
                            "lang": "en",
                            "type": "CWE",
                            "cweId": "CWE-352",
                            "description": "CWE-352: Cross-Site Request Forgery (CSRF)"
                        }
                    ]
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "https://github.com/cyberlanc3r",
                    "type": "reporter"
                },
                {
                    "lang": "en",
                    "value": "https://github.com/u2usvc",
                    "type": "reporter"
                },
                {
                    "lang": "en",
                    "value": "https://github.com/wxiaoguang",
                    "type": "remediation developer"
                }
            ]
        },
        "adp": [
            {
                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 5.4,
                            "attackVector": "NETWORK",
                            "baseSeverity": "MEDIUM",
                            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
                            "integrityImpact": "LOW",
                            "userInteraction": "REQUIRED",
                            "attackComplexity": "LOW",
                            "availabilityImpact": "NONE",
                            "privilegesRequired": "NONE",
                            "confidentialityImpact": "LOW"
                        }
                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-10-19T20:20:04.646263Z",
                                "id": "CVE-2026-104627",
                                "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": "2026-10-19T20:20:15.460Z"
                }
            }
        ]
    }
}