High severity · published Jan 20, 2026
CVE-2025-59466
We have identified a bug in Node.js error handling where "Maximum call stack size exceeded" errors become uncatchable when `async_hooks.createHook()` is enabled
7.5
CVSS
0.7%
EPSS
No
On KEV
Description
We have identified a bug in Node.js error handling where "Maximum call stack size exceeded" errors become uncatchable when `async_hooks.createHook()` is enabled. Instead of reaching `process.on('uncaughtException')`, the process terminates, making the crash unrecoverable. Applications that rely on `AsyncLocalStorage` (v22, v20) or `async_hooks.createHook()` (v24, v22, v20) become vulnerable to denial-of-service crashes triggered by deep recursion under specific conditions.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NO
node · nodejs
20.19.6 through 20.19.6; 22.21.1 through 22.21.1; 24.12.0 through 24.12.0; 25.2.1 through 25.2.1; 8.0 before 8.*; 9.0 before 9.*; +9 more · source: vendor
NO
Node.js · Nodejs
20.0.0 before 20.20.0; 22.0.0 before 22.22.0; 24.0.0 before 24.13.0; 25.0.0 before 25.3.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-59466
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-59466
Release Notes
https://nodejs.org/en/blog/vulnerability/december-2025-security-releases
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