CVE-2026-120007

Medium

Description

NodeBB 1.18.0 through 4.16.5 contains an authorization bypass vulnerability that allows unauthenticated visitors to act on other accounts by supplying a uid during POST /register. Attackers can submit an empty email at the /register/complete interstitial to clear a victim's email and confirmation state and revoke all their sessions.

SeverityMedium

CVSS6.5

Exploit probability—

Product

NodeBB

PublishedOct 30, 2026

First seenNov 4, 2026

Weakness typeCWE-639Authorization bypass through user-controlled key

How to fix

Patches

github.com/NodeBB/NodeBB/commit/376d14abb7fffd8ea14f3a2f96baa20ffee5cdb3

Affected products

Product	Affected versions	Fixed in
NodeBB NodeBB	1.18.0 ≤ v ≤ 4.16.5	—

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