Intel

AIKIDO-2026-10885

symfony/security-http is vulnerable to Insufficient Verification of Data Authenticity

Insufficient Verification of Data AuthenticityCVE-2026-45069 Published May 21, 2026

81

High Risk

This Affects:

PHPsymfony/security-http
6.3.0 - 6.4.39
Fixed in 6.4.40
7.4.0 - 7.4.11
Fixed in 7.4.12
8.0.0 - 8.0.11
Fixed in 8.0.12
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TL;DR

OidcTokenHandler registers claim checkers but does not require aud, iss, or exp to be present. A validly signed token can omit those claims and bypass intended audience, issuer, or expiry validation. Pre-fix applications can accept tokens outside the configured OpenID Connect trust constraints. The fix marks those claims mandatory during claim checking.

Who does this affect?

You are affected if you are using a version that falls within the vulnerable range.

Background info

symfony/security-http is vulnerable to Insufficient Verification of Data Authenticity in versions 6.3.0 - 6.4.39, 7.4.0 - 7.4.11 and 8.0.0 - 8.0.11.

How to fix this

Upgrade the symfony/security-http and/or symfony/symfony library to the patch version.