CVE-2026-34966

HighCVSS 7.6/10Last modified Oct 8, 2026

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.

Metrics

CVSS 3.1 7.6/10CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N

Weakness enumeration

CWE-918

Affected software

No affected versions have been published.

Timeline

Published: Aug 5, 2026
Last modified: Oct 8, 2026
NVD status: Deferred

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