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Alpaquita LinuxStreamSecurity Advisory
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CVE-2025-55131

Published: January 17, 2026Last modified: February 18, 2026

Description

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.

Severity score breakdown

ParameterValue
Base score7.1
Attack VectorNETWORK
Attack complexityHIGH
Privileges requiredLOW
User interactionNONE
ScopeUNCHANGED
ConfidentialityHIGH
Integrity impactHIGH
Availability impactLOW
VectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L

Status

ProductReleasePackageStatus
Alpaquita Linux23 LTSnodejsFixed (20.20.0-r0)
25 LTSnodejsFixed (22.22.0-r0)
StreamnodejsFixed (24.13.0-r0)
Hardened Containers23 LTSnodejsFixed (20.20.0-r0)
25 LTSnodejsFixed (22.22.0-r0)
StreamnodejsFixed (24.13.0-r0)

References

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