OWASPASVS 5.0 requirement

ASVS-V6.8.3 Saml assertions are uniquely processed and used only once within the validity period to prevent replay attacks.

L2 Published 2025 Official page ↗
Standard
OWASP ASVS 5.0
Chapter
V6 Authentication
Section
V6.8 Authentication with an Identity Provider
Level
L2 (requirement applies from this verification level up)

Requirement

Verify that SAML assertions are uniquely processed and used only once within the validity period to prevent replay attacks.