CVE-2025-55131Patch

LOWCVSS 7.1 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD 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.

0.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-120CWE-497

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Threat summary

  • Patch or workaround signal is available
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-03-19: 1Patch / Workaround · 2026-03-19: 1Technical Details · 2026-03-19: 103-19
Signal classification1 categories
Patch
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • Multiverso.INFO News@multiverso_info
    Patch

    Time to get excited about the latest Node.js security patches! 🚀 Covering versions 20.x–25.x, these updates fix High-severity buffer leaks (CVE-2025-55131) and harden the experimental Permission Model against symlink exploits. Essential resilience for production workloads! #NodeJS #CVE202555131 #PermissionModel https://news.multiverso.info/nodejs-january-2026-security-release/

    Post summary

    The article announces Node.js 20.x–25.x security patches that address the high‑severity CVE‑2025‑55131 buffer leak and strengthen the experimental Permission Model against symlink attacks.

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    5 followersView on X

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