Question 1

What is CVE-2026-26247 — CVE-2026-26247?

Accepted Answer

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.

Question 2

What is the authoritative source for CVE-2026-26247?

Accepted Answer

CVE-2026-26247 (CVE-2026-26247) is catalogued in NVD + CISA KEV + FIRST EPSS and curated for EU compliance use cases by SQUR.

CVE-2026-26247CVE-2026-26247

Description

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