Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-74967.json
JSON Data
https://api.osv.dev/v1/vulns/AZL-74967
Upstream
  • CVE-2025-55131
Published
2026-01-20T21:16:03Z
Modified
2026-04-21T04:38:49.949451Z
Summary
CVE-2025-55131 affecting package nodejs18 for versions less than 18.20.3-11
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:2 / nodejs18

Package

Name
nodejs18
Purl
pkg:rpm/azure-linux/nodejs18

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
18.20.3-11

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-74967.json"