CVE-2026-31946: falha crítica em OpenOLAT
OpenOLAT: Authentication bypass via forged JWT in OIDC implicit flow
Publicada em · Atualizada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
28Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 9.8epss 0.2%
OpenOlat is an open source web-based e-learning platform for teaching, learning, assessment and communication. From version 10.5.4 to before version 20.2.5, OpenOLAT's OpenID Connect implicit flow implementation does not verify JWT signatures. The JSONWebToken.parse() method silently discards the signature segment of the compact JWT (header.payload.signature), and the getAccessToken() methods in both OpenIdConnectApi and OpenIdConnectFullConfigurableApi only validate claim-level fields (issuer, audience, state, nonce) without any cryptographic signature verification against the Identity Provider's JWKS endpoint. This issue has been patched in version 20.2.5.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Produtos afetados
OpenOLAT · OpenOLATCVEs relacionadas — OpenOLAT
No mesmo produto, das mais perigosas para as menos.
CVE-2021-39180HIGHPath Traversal in Archive Handling Leading to Code ExecutionEPSS 2.4%CVE-2021-39181HIGHUnsafe Deserialization of User Data Using XStreamEPSS 1.9%CVE-2021-41242HIGHPath Traversal in some REST methods leading to file upload to arbitrary placesEPSS 1.5%CVE-2021-41152HIGHPath Traversal in Folder Component Leading to Local File InclusionEPSS 1.2%CVE-2024-28198MEDIUMXML external entity (XXE) injection in OpenOLATEPSS 0.4%CVE-2026-28228HIGHOpenOLAT: Server-Side Template Injection (SSTI) in Velocity templates allows Remote Code ExecutionEPSS 0.4%