Improper Neutralization Affecting nodejs26-bin package, versions <0:26.5.1-1.5.hum1


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.17% (7th 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-RHEL10-NODEJS26BIN-18562647
  • published6 Aug 2026
  • disclosed29 Jul 2026

Introduced: 29 Jul 2026

NewCVE-2026-16729  (opens in a new tab)
CWE-140  (opens in a new tab)

How to fix?

Upgrade RHEL:10 nodejs26-bin to version 0:26.5.1-1.5.hum1 or higher.
This issue was patched in RHSA-2026:48273.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nodejs26-bin package and not the nodejs26-bin package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

undici's setCookie function does not fully sanitize cookie attributes. In undici before 6.28.0, from 7.0.0 up to before 7.29.0, and from 8.0.0 up to before 8.9.0, a domain value is not checked for semicolons and entries in the unparsed array are not sanitized, so attacker-influenced input can inject additional cookie attributes. For example, a domain value containing a semicolon can append attributes such as SameSite, and an unparsed entry can inject attributes such as HttpOnly, without the caller setting them. Applications that pass user-controlled input to these fields, such as multi-tenant or reverse-proxy servers that scope session cookies to a tenant-supplied domain, can have SameSite CSRF protections bypassed, or the Secure, HttpOnly, and SameSite attributes forced, stripped, or overridden. The issue is fixed in undici 6.28.0, 7.29.0, and 8.9.0.

CVSS Base Scores

version 3.1