CVE-2025-29776
March 14, 2025
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.
Affected Packages
azle (NPM):
Affected version(s) Fix Suggestion:
Update to version 0.30.0Related Resources (4)
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Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
LOW
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Loop with Unreachable Exit Condition ('Infinite Loop')
EPSS
Base Score:
0.07
