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CVE-2026-26247

Gitea OAuth2 PKCE S256 challenges are not enforced during token exchange PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Gitea / Gitea Open Source Git Serveraffected 0 before 1.25.5

CWE

CWE-284

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.