Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-74979.json
JSON Data
https://api.osv.dev/v1/vulns/AZL-74979
Upstream
  • CVE-2025-55131
Published
2026-01-20T21:16:03Z
Modified
2026-04-21T04:38:49.833109Z
Summary
CVE-2025-55131 affecting package nodejs for versions less than 20.14.0-13
Details

A flaw in Node.js's buffer allocation logic can expose uninitialized memory when allocations are interrupted, when using the vm module with the timeout option. Under specific timing conditions, buffers allocated with Buffer.alloc and other TypedArray instances like Uint8Array may contain leftover data from previous operations, allowing in-process secrets like tokens or passwords to leak or causing data corruption. While exploitation typically requires precise timing or in-process code execution, it can become remotely exploitable when untrusted input influences workload and timeouts, leading to potential confidentiality and integrity impact.

References

Affected packages

Azure Linux:3 / nodejs

Package

Name
nodejs
Purl
pkg:rpm/azure-linux/nodejs

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
20.14.0-13

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-74979.json"