Information Exposure Affecting nodejs22 package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.01% (2nd percentile)

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  • Snyk IDSNYK-RHEL10-NODEJS22-15888294
  • published4 Apr 2026
  • disclosed30 Mar 2026

Introduced: 30 Mar 2026

NewCVE-2026-21713  (opens in a new tab)
CWE-208  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:10 nodejs22.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nodejs22 package and not the nodejs22 package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

A flaw in Node.js HMAC verification uses a non-constant-time comparison when validating user-provided signatures, potentially leaking timing information proportional to the number of matching bytes. Under certain threat models where high-resolution timing measurements are possible, this behavior could be exploited as a timing oracle to infer HMAC values.

Node.js already provides timing-safe comparison primitives used elsewhere in the codebase, indicating this is an oversight rather than an intentional design decision.

This vulnerability affects 20.x, 22.x, 24.x, and 25.x.

CVSS Base Scores

version 3.1