Information Exposure Through Caching Affecting nodejs24-libs package, versions <1:24.18.1-1.amzn2023.0.2


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.23% (14th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-AMZN2023-NODEJS24LIBS-18911580
  • published18 Aug 2026
  • disclosed29 Jul 2026

Introduced: 29 Jul 2026

NewCVE-2026-14643  (opens in a new tab)
CWE-524  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 nodejs24-libs to version 1:24.18.1-1.amzn2023.0.2 or higher.
This issue was patched in ALAS2023-2026-2059.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nodejs24-libs package and not the nodejs24-libs package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

undici's cache interceptor mishandles optional whitespace placed around the equals sign of a qualified no-cache or private Cache-Control directive. In undici from 7.0.0 up to before 7.29.0 and from 8.0.0 up to before 8.9.0, the parser either drops the directive or stores a field name with literal quote characters, so the cache decision fails to recognize the qualification and the response is stored. In shared-cache mode, this lets a response containing one user's authenticated data be served from cache to a later caller, including an unauthenticated one, when both requests resolve to the same cache key. It affects applications that enable the cache interceptor in shared mode, forward Authorization headers upstream, and receive cacheable responses with qualified directives padded with whitespace around the equals sign. This is the whitespace-around-equals variant that the fix for CVE-2026-9678 did not normalize, and it is fixed in undici 7.29.0 and 8.9.0.

CVSS Base Scores

version 3.1