Security Advisories
CVEs affecting projects tracked on Release Alert, from NVD & OSV.
CVE-2026-26247
9.1
CRITICALCVSS v3
Published
July 3, 2026
Affected
1 project
Assigned by
88ee5874-cf24-4952-aea0-31affedb7ff2
Severity scale
010
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.
go-gitea/gitea
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