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CVE-2026-26247

CRITICAL CVSS: 9.1 Published: 2026-07-03 Modified: 2026-07-07

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.

Affected Platforms

Unknown

Weakness Type

CWE-284

References