Forwarded-Proto Injection Vulnerability in Gitea by Gitea
CVE-2026-27779

7.5HIGH

Key Information:

Vendor

Gitea

Status
Gitea Open Source Git Server
Vendor
CVE Published:
3 July 2026

What is CVE-2026-27779?

Gitea versions prior to 1.25.5 are susceptible to a vulnerability that allows the acceptance of malformed or manipulated forwarded-proto values. This issue can lead to the generation of spoofed canonical URLs, which may facilitate various security threats, including phishing attempts and misrepresentation of services. Users are encouraged to update to the latest version to mitigate these risks.

Affected Version(s)

Gitea Open Source Git Server 0 < 1.25.5

References

https://github.com/go-gitea/gitea/pull/36810
patch
https://github.com/go-gitea/gitea/pull/36836
patch
https://github.com/go-gitea/gitea/releases/tag/v1.25.5
release-notes

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

fed01k
.