{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9.8,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-73278",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-07T20:00:20.177733Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-07T20:00:46.107Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageName": "gitea.dev",
          "product": "Gitea",
          "vendor": "Gitea",
          "versions": [
            {
              "lessThanOrEqual": "1.27.1",
              "status": "affected",
              "version": "1.16.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "https://github.com/MindflareX"
        },
        {
          "lang": "en",
          "type": "reporter",
          "value": "https://github.com/AdamKorcz"
        },
        {
          "lang": "en",
          "type": "reporter",
          "value": "https://github.com/jaeyoon-kim-dev"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Gitea\u0027s OAuth2 and OpenID Connect sign-in paths do not require a WebAuthn challenge when WebAuthn is the account\u0027s only configured second factor. A party able to authenticate through the affected external identity flow can obtain a full session without the passkey verification enforced during password login. One affected path can also persist an external identity link, extending the compromise beyond the initial session; accounts with TOTP configured are outside the reported WebAuthn-only scenario."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-287",
              "description": "CWE-287: Improper Authentication",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-06T19:33:54.375Z",
        "orgId": "88ee5874-cf24-4952-aea0-31affedb7ff2",
        "shortName": "Gitea"
      },
      "references": [
        {
          "name": "GitHub Security Advisory GHSA-92j2-6qcg-c28c",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-92j2-6qcg-c28c"
        },
        {
          "name": "Gitea 1.27.2 release announcement",
          "tags": [
            "release-notes"
          ],
          "url": "https://blog.gitea.com/release-of-1.27.2/"
        },
        {
          "name": "Fix: go-gitea/gitea pull request #38805",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/go-gitea/gitea/pull/38805"
        },
        {
          "name": "Fix: go-gitea/gitea pull request #38810",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/go-gitea/gitea/pull/38810"
        },
        {
          "name": "go-gitea/gitea v1.27.2 release",
          "tags": [
            "release-notes"
          ],
          "url": "https://github.com/go-gitea/gitea/releases/tag/v1.27.2"
        }
      ],
      "title": "Gitea WebAuthn bypass during OAuth and OIDC sign-in"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "88ee5874-cf24-4952-aea0-31affedb7ff2",
    "assignerShortName": "Gitea",
    "cveId": "CVE-2026-73278",
    "datePublished": "2026-10-06T19:33:54.375Z",
    "dateReserved": "2026-08-13T16:50:59.760Z",
    "dateUpdated": "2026-10-07T20:00:46.107Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 9.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-73278\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-10-07T20:00:20.177733Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-10-07T20:00:38.221Z\"}}], \"cna\": {\"title\": \"Gitea WebAuthn bypass during OAuth and OIDC sign-in\", \"credits\": [{\"lang\": \"en\", \"type\": \"reporter\", \"value\": \"https://github.com/MindflareX\"}, {\"lang\": \"en\", \"type\": \"reporter\", \"value\": \"https://github.com/AdamKorcz\"}, {\"lang\": \"en\", \"type\": \"reporter\", \"value\": \"https://github.com/jaeyoon-kim-dev\"}], \"affected\": [{\"vendor\": \"Gitea\", \"product\": \"Gitea\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.16.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"1.27.1\"}], \"packageName\": \"gitea.dev\", \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://github.com/go-gitea/gitea/security/advisories/GHSA-92j2-6qcg-c28c\", \"name\": \"GitHub Security Advisory GHSA-92j2-6qcg-c28c\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://blog.gitea.com/release-of-1.27.2/\", \"name\": \"Gitea 1.27.2 release announcement\", \"tags\": [\"release-notes\"]}, {\"url\": \"https://github.com/go-gitea/gitea/pull/38805\", \"name\": \"Fix: go-gitea/gitea pull request #38805\", \"tags\": [\"patch\"]}, {\"url\": \"https://github.com/go-gitea/gitea/pull/38810\", \"name\": \"Fix: go-gitea/gitea pull request #38810\", \"tags\": [\"patch\"]}, {\"url\": \"https://github.com/go-gitea/gitea/releases/tag/v1.27.2\", \"name\": \"go-gitea/gitea v1.27.2 release\", \"tags\": [\"release-notes\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Gitea\u0027s OAuth2 and OpenID Connect sign-in paths do not require a WebAuthn challenge when WebAuthn is the account\u0027s only configured second factor. A party able to authenticate through the affected external identity flow can obtain a full session without the passkey verification enforced during password login. One affected path can also persist an external identity link, extending the compromise beyond the initial session; accounts with TOTP configured are outside the reported WebAuthn-only scenario.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-287\", \"description\": \"CWE-287: Improper Authentication\"}]}], \"providerMetadata\": {\"orgId\": \"88ee5874-cf24-4952-aea0-31affedb7ff2\", \"shortName\": \"Gitea\", \"dateUpdated\": \"2026-10-06T19:33:54.375Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-73278\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-10-07T20:00:46.107Z\", \"dateReserved\": \"2026-08-13T16:50:59.760Z\", \"assignerOrgId\": \"88ee5874-cf24-4952-aea0-31affedb7ff2\", \"datePublished\": \"2026-10-06T19:33:54.375Z\", \"assignerShortName\": \"Gitea\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}