CVE-2026-34966

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.

CVSS v3 7.6 HIGH

7.6^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.3 / Impact : 4.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/go-gitea/gitea
https://github.com/go-gitea/gitea/commit/b969123b7fac51c88daab5cb64e5b2f4abd53288
https://github.com/go-gitea/gitea/security/advisories/GHSA-2wm4-vwp6-v7xc
https://www.vulncheck.com/advisories/gitea-prior-to-ssrf-via-migration-uri-fetch-bypass
https://github.com/go-gitea/gitea/security/advisories/GHSA-2wm4-vwp6-v7xc

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-05 21:16

Updated : 2026-08-06 16:16

NVD link : CVE-2026-34966

Mitre link : CVE-2026-34966

CVE.ORG link : CVE-2026-34966

JSON object : View

Products Affected

No product.

CWE

CWE-918

Server-Side Request Forgery (SSRF)

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