OWASPASVS 5.0 requirement

ASVS-V10.5.5 Verify that, when using oidc back-channel logout, the relying party mitigates denial of service through forced logout and cross-jwt…

L2 Published 2025 Official page ↗
Standard
OWASP ASVS 5.0
Chapter
V10 OAuth and OIDC
Section
V10.5 OIDC Client
Level
L2 (requirement applies from this verification level up)

Requirement

Verify that, when using OIDC back-channel logout, the relying party mitigates denial of service through forced logout and cross-JWT confusion in the logout flow. The client must verify that the logout token is correctly typed with a value of 'logout+jwt', contains the 'event' claim with the correct member name, and does not contain a 'nonce' claim. Note that it is also recommended to have a short expiration (e.g., 2 minutes).