AIKIDO-2026-10657
inngest is vulnerable to Observable Timing Discrepancy
25
Low Risk
This Affects:
inngestTL;DR
Affected versions of the package are vulnerable because request signature verification compared HMAC signatures using non-constant-time string comparison (such as ===/!==). This allowed attackers to exploit timing differences to recover or distinguish valid signatures. Additionally, insufficient timestamp validation allowed non-numeric or out-of-range values, which could enable bypass of expiry checks.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
inngest is vulnerable to Observable Timing Discrepancy in versions 2.4.1 - 4.2.4.
How to fix this
Upgrade the inngest library to the patch version.
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