Description

Gitea versions before 1.25.5 do not persist the OAuth2 PKCE S256 challenge method correctly during authorization, allowing token exchange without the expected verifier check.

Related CPE's

Could not find any relations

References

https://blog.gitea.com/release-of-1.25.5/

https://github.com/go-gitea/gitea/pull/36462

https://github.com/go-gitea/gitea/pull/36477

https://github.com/go-gitea/gitea/releases/tag/v1.25.5

Weaknesses

88ee5874-cf24-4952-aea0-31affedb7ff2

Secondary
CWE-284

CVSS impact metrics

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

9.1 · Critical

Information

Source identifier

88ee5874-cf24-4952-aea0-31affedb7ff2

Vulnerability status

Deferred

Published

2026-07-03T21:16:58.417Z

3 months ago

Last modified

2026-07-07T18:16:37.327Z

3 months ago