CVE-2026-42280

HIGH

auth0.js - Improper Permission Checking in Auth.js SDK

Title source: rule
STIX 2.1

Description

Auth0.js is a client-side JavaScript library for Auth0. From 8.11.0 to 9.32.0, under specific preconditions, the Auth0.js SDK may improperly return user profile information using a valid access token when a specifically crafted invalid ID token is provided. This vulnerability is fixed in 10.0.0.

References (1)

Core 1
Core References

Scores

CVSS v3 7.1
EPSS 0.0021
EPSS Percentile 11.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-863
Status published
Products (3)
auth0/auth0.js 8.11.0 - 10.0.0
auth0/auth0.js >= 8.11.0 , <= 9.32.0
npm/auth0-js 8.11.0 - 10.0.0npm
Published May 27, 2026
Tracked Since May 27, 2026