CVE-2026-26247
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 products
- Gitea
- Fix
- Available
- CVSS 3.1
- 9.1 CRITICAL
- EPSS
- 0.4% (31th percentile)
- Weakness
- CWE-284
- NVD status
- Deferred
- Published
- 2026-07-03
CVE-2026-26247 at NVD
No indexed exploits for CVE-2026-26247 yet
Our index is partial: it proves presence, never absence
No exploit for CVE-2026-26247 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.