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.
History

Fri, 07 Aug 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Important


Thu, 06 Aug 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 05 Aug 2026 21:45:00 +0000

Type Values Removed Values Added
First Time appeared Gitea
Gitea gitea
Vendors & Products Gitea
Gitea gitea

Wed, 05 Aug 2026 20:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Gitea prior to 1.27.0 SSRF via Migration URI Fetch Bypass
Weaknesses CWE-918
References
Metrics cvssV3_1

{'score': 7.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N'}

cvssV4_0

{'score': 8.3, 'vector': '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-08-06T14:41:17.600Z

Reserved: 2026-03-31T17:58:43.754Z

Link: CVE-2026-34966

cve-icon Vulnrichment

Updated: 2026-08-06T14:41:09.003Z

cve-icon NVD

No data.

cve-icon Redhat

Severity : Important

Publid Date: 2026-08-05T20:28:57Z

Links: CVE-2026-34966 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-05T22:00:14Z