Time-of-check Time-of-use (TOCTOU) Race Condition Affecting node package, versions [22.0.0,22.23.0)[24.0.0,24.17.0)[25.0.0,26.1.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UPSTREAM-NODE-17430983
- published23 Jun 2026
- disclosed22 Jun 2026
- credityushengchen
Introduced: 22 Jun 2026
NewCVE-2026-48931 (opens in a new tab)How to fix?
Upgrade node to version 22.23.0, 24.17.0, 26.1.0 or higher.
Overview
node is a JavaScript runtime built on Chrome's V8 JavaScript engine.
Affected versions of this package are vulnerable to Time-of-check Time-of-use (TOCTOU) Race Condition in the HTTP Agent. An attacker can cause a client to accept a response as valid before the client has sent its request by exploiting the timing of HTTP responses.