{"api_version":"1","generated_at":"2026-10-06T21:46:58+00:00","cve":"CVE-2026-96400","urls":{"html":"https://cve.report/CVE-2026-96400","api":"https://cve.report/api/cve/CVE-2026-96400.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-96400","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-96400"},"summary":{"title":"Gitea migration SSRF to reserved addresses through ALLOWED_DOMAINS","description":"With `[migrations] ALLOWED_DOMAINS` set to a matching entry such as `*` or a hostname wildcard, Gitea's migration URL validation could permit reserved and link-local addresses, such as `169.254.169.254`, even when `ALLOW_LOCALNETWORKS = false`. The local-network block list did not cover these ranges, and a hostname matching the allow list was accepted regardless of its resolved address. A user who can start migrations on such an instance could reach these addresses from the Gitea server; the default empty `ALLOWED_DOMAINS` configuration is not affected.","state":"PUBLISHED","assigner":"Gitea","published_at":"2026-10-06 20:17:35","updated_at":"2026-10-06 20:17:35"},"problem_types":["CWE-918","CWE-918 CWE-918: Server-Side Request Forgery (SSRF)"],"metrics":[],"references":[{"url":"https://github.com/go-gitea/gitea/releases/tag/v28.0.0","name":"https://github.com/go-gitea/gitea/releases/tag/v28.0.0","refsource":"88ee5874-cf24-4952-aea0-31affedb7ff2","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-54w9-6cc5-9wj9","name":"https://github.com/go-gitea/gitea/security/advisories/GHSA-54w9-6cc5-9wj9","refsource":"88ee5874-cf24-4952-aea0-31affedb7ff2","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/go-gitea/gitea/pull/39426","name":"https://github.com/go-gitea/gitea/pull/39426","refsource":"88ee5874-cf24-4952-aea0-31affedb7ff2","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://blog.gitea.com/release-of-28.0.0/","name":"https://blog.gitea.com/release-of-28.0.0/","refsource":"88ee5874-cf24-4952-aea0-31affedb7ff2","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-96400","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-96400","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Gitea","product":"Gitea","version":"affected 1.27.3 semver","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"https://github.com/ihopenre-eng","lang":"en"},{"source":"CNA","value":"https://github.com/TheFox0x7","lang":"en"},{"source":"CNA","value":"https://github.com/silverwind","lang":"en"},{"source":"CNA","value":"https://github.com/bircni","lang":"en"},{"source":"CNA","value":"https://github.com/wxiaoguang","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","packageName":"gitea.dev","product":"Gitea","vendor":"Gitea","versions":[{"lessThanOrEqual":"1.27.3","status":"affected","version":"0","versionType":"semver"}]}],"credits":[{"lang":"en","type":"reporter","value":"https://github.com/ihopenre-eng"},{"lang":"en","type":"remediation developer","value":"https://github.com/TheFox0x7"},{"lang":"en","type":"remediation developer","value":"https://github.com/silverwind"},{"lang":"en","type":"remediation developer","value":"https://github.com/bircni"},{"lang":"en","type":"remediation developer","value":"https://github.com/wxiaoguang"}],"descriptions":[{"lang":"en","value":"With `[migrations] ALLOWED_DOMAINS` set to a matching entry such as `*` or a hostname wildcard, Gitea's migration URL validation could permit reserved and link-local addresses, such as `169.254.169.254`, even when `ALLOW_LOCALNETWORKS = false`. The local-network block list did not cover these ranges, and a hostname matching the allow list was accepted regardless of its resolved address. A user who can start migrations on such an instance could reach these addresses from the Gitea server; the default empty `ALLOWED_DOMAINS` configuration is not affected."}],"problemTypes":[{"descriptions":[{"cweId":"CWE-918","description":"CWE-918: Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-10-06T19:25:23.261Z","orgId":"88ee5874-cf24-4952-aea0-31affedb7ff2","shortName":"Gitea"},"references":[{"name":"GitHub Security Advisory GHSA-54w9-6cc5-9wj9","tags":["vendor-advisory"],"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-54w9-6cc5-9wj9"},{"name":"Fix: go-gitea/gitea pull request #39426","tags":["patch"],"url":"https://github.com/go-gitea/gitea/pull/39426"},{"name":"Gitea 28.0.0 release announcement","tags":["release-notes"],"url":"https://blog.gitea.com/release-of-28.0.0/"},{"name":"go-gitea/gitea v28.0.0 release","tags":["release-notes"],"url":"https://github.com/go-gitea/gitea/releases/tag/v28.0.0"}],"title":"Gitea migration SSRF to reserved addresses through ALLOWED_DOMAINS"}},"cveMetadata":{"assignerOrgId":"88ee5874-cf24-4952-aea0-31affedb7ff2","assignerShortName":"Gitea","cveId":"CVE-2026-96400","datePublished":"2026-10-06T19:25:23.261Z","dateReserved":"2026-10-04T21:59:53.556Z","dateUpdated":"2026-10-06T19:25:23.261Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-06 20:17:35","lastModifiedDate":"2026-10-06 20:17:35","problem_types":["CWE-918","CWE-918 CWE-918: Server-Side Request Forgery (SSRF)"],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"96400","Ordinal":"1","Title":"Gitea migration SSRF to reserved addresses through ALLOWED_DOMAI","CVE":"CVE-2026-96400","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"96400","Ordinal":"1","NoteData":"With `[migrations] ALLOWED_DOMAINS` set to a matching entry such as `*` or a hostname wildcard, Gitea's migration URL validation could permit reserved and link-local addresses, such as `169.254.169.254`, even when `ALLOW_LOCALNETWORKS = false`. The local-network block list did not cover these ranges, and a hostname matching the allow list was accepted regardless of its resolved address. A user who can start migrations on such an instance could reach these addresses from the Gitea server; the default empty `ALLOWED_DOMAINS` configuration is not affected.","Type":"Description","Title":"Gitea migration SSRF to reserved addresses through ALLOWED_DOMAI"}]}}}