CVE-2026-20896
Gitea Docker image versions up to and including 1.26.2 use REVERSE_PROXY_TRUSTED_PROXIES=* by default, allowing any source IP to impersonate a user when reverse-proxy authentication headers such as X-WEBAUTH-USER are enabled.
- CVSS 3.1
- 9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS
- 2.8% chance of exploitation in the next 30 days; higher than 86% of CVEs (scores of 2026-10-25)
- CWE
- CWE-284
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-f75j-4cw6-rmx4 | Go | code.gitea.io/gitea | <1.26.3 | 1.26.3 |
| GO-2026-6051 | Go | code.gitea.io/gitea | <1.26.3 | 1.26.3 |