CVE-2026-34966

HIGH
MEDIUM Priority: 0.03 BB Relevance: 62/100
Published: 2026-08-05 Modified: 2026-11-08 First seen: 2026-11-08 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: High
UI: None
AT: None
VC: High
VI: Low
VA: None

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.

Affected Software (1)

VendorProductVersion
Gitea Gitea 0

Bug Bounty Relevance

62 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

8.3 / 10.0 v4.0
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

EPSS — Exploitation Probability

0.39%
Raw Score 0.003890
Percentile 33.6%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00389
2026-11-12
0.00389
2026-11-10
0.00389
2026-11-09
0.00389
2026-11-08
0.00389

Intelligence Sources

mitre ref →