AIKIDO-2026-10019
elysia is vulnerable to Observable Timing Discrepancy
30
Low Risk
This Affects:
elysiaTL;DR
Affected versions of this package are vulnerable to timing attacks in signed cookie verification, where the use of non-constant-time string equality checks during signature validation could allow an attacker to exploit measurable timing differences by submitting forged cookies and analyzing response times, gradually deducing the correct signature to forge authenticated cookies and potentially bypass authentication, a risk mitigated by implementing constant-time comparison to eliminate side-channel leaks while preserving valid cookie behavior.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
elysia is vulnerable to Observable Timing Discrepancy in versions 1.0.0 - 1.4.19.
How to fix this
Upgrade the elysia library to the patch version.
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SOC 2Compliant
ISO 27001Compliant