CVE-2026-84961 Affecting nodejs:24/nodejs-nodemon package, versions <0:3.1.14-2.module_el8.10.0+4250+09238ed4


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.15% (4th percentile)

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  • Snyk IDSNYK-ALMALINUX8-NODEJS-20953289
  • published15 Oct 2026
  • disclosed30 Sept 2026

Introduced: 30 Sep 2026

NewCVE-2026-84961  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 nodejs:24/nodejs-nodemon to version 0:3.1.14-2.module_el8.10.0+4250+09238ed4 or higher.
This issue was patched in ALSA-2026:74085.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nodejs:24/nodejs-nodemon package and not the nodejs:24/nodejs-nodemon package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

undici's BalancedPool constructor passes its entire options object through an internal deep-clone that serializes and reparses the value as JSON. Because JSON cannot represent functions, any function-valued TLS option, such as a caller-supplied checkServerIdentity callback or a custom connector inside the connect option, is silently discarded before it reaches the TLS layer. As a result a peer whose certificate the application's custom checkServerIdentity was written to reject, but which still passes Node's default hostname and chain checks, is accepted when reached through BalancedPool. The Client, Pool, and Agent dispatchers are not affected because they extract the connect and tls options before cloning. This affects undici versions from 7.24.1 up to 7.29.1 and from 8.0.0 up to 8.10.2, and only when the application supplies a function-valued connect or tls option to BalancedPool. Users should upgrade to undici 7.29.1 or 8.10.2.

CVSS Base Scores

version 3.1