AIKIDO-2026-533853
agent-manifest is vulnerable to Improper Check or Handling of Exceptional Conditions
75
High Risk
This Affects:
agent-manifestTL;DR
The verifier re-parses manifest timestamps during the expiry check using a stricter parser than the one used during schema validation. Alternate but valid timestamp representations such as epoch strings or a lowercase time-zone designator raise a parsing error that is silently caught, skipping the validity-window enforcement. A correctly signed but expired manifest then returns a valid verdict with the signature marked verified. The fix handles the alternate timestamp forms so expiry is always enforced.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and you rely on manifest expiry being enforced during verification.
Background info
agent-manifest is vulnerable to Improper Check or Handling of Exceptional Conditions in versions 0.1.0 - 0.11.2.
How to fix this
Upgrade the agent-manifest library to the patch version.
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