Vulnerability Description
Azle is a WebAssembly runtime for TypeScript and JavaScript on ICP. Calling `setTimer` in Azle versions `0.27.0`, `0.28.0`, and `0.29.0` causes an immediate infinite loop of timers to be executed on the canister, each timer attempting to clean up the global state of the previous timer. The infinite loop will occur with any valid invocation of `setTimer`. The problem has been fixed as of Azle version `0.30.0`. As a workaround, if a canister is caught in this infinite loop after calling `setTimer`, the canister can be upgraded and the timers will all be cleared, thus ending the loop.
Related Weaknesses (CWE)
References
- https://github.com/demergent-labs/azle/releases/tag/0.30.0
- https://github.com/demergent-labs/azle/security/advisories/GHSA-xc76-5pf9-mx8m
FAQ
What is CVE-2025-29776?
CVE-2025-29776 is a documented vulnerability. Azle is a WebAssembly runtime for TypeScript and JavaScript on ICP. Calling `setTimer` in Azle versions `0.27.0`, `0.28.0`, and `0.29.0` causes an immediate infinite loop of timers to be executed on t...
How severe is CVE-2025-29776?
CVSS scoring is not yet available for CVE-2025-29776. Check NVD for updates.
Is there a patch for CVE-2025-29776?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.