{"id":"BIT-gitea-2026-34966","summary":"Gitea prior to 1.27.0 SSRF via Migration URI Fetch Bypass","details":"Gitea prior to 1.27.0 contains a server-side request forgery vulnerability that allows authenticated attackers to bypass SSRF protections by exploiting HTTP fetch operations in migration and OAuth avatar code paths that use Go's default http.Get without a custom DialContext. Attackers can supply arbitrary URLs through release asset download URLs, pull-request patch URLs, or OAuth avatar endpoints to reach internal services, cloud instance-metadata endpoints, or read local files such as the application configuration containing database credentials and signing secrets, with exfiltrated content persisted as migration release assets for later retrieval.","aliases":["CVE-2026-34966","CVE-2026-59765","GHSA-2wm4-vwp6-v7xc","GO-2026-6039"],"modified":"2026-10-14T11:11:12.586131494Z","published":"2026-10-14T08:42:57.193Z","database_specific":{"severity":"High","cpes":["cpe:2.3:a:gitea:gitea:*:*:*:*:*:go:*:*"]},"references":[{"type":"WEB","url":"https://github.com/go-gitea/gitea"},{"type":"WEB","url":"https://github.com/go-gitea/gitea/commit/b969123b7fac51c88daab5cb64e5b2f4abd53288"},{"type":"WEB","url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-2wm4-vwp6-v7xc"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34966"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/gitea-prior-to-ssrf-via-migration-uri-fetch-bypass"}],"affected":[{"package":{"name":"gitea","ecosystem":"Bitnami","purl":"pkg:bitnami/gitea"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.27.0"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/gitea/BIT-gitea-2026-34966.json"},"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}],"schema_version":"1.9.0"}