Staging Environment: Content and features may be unstable or change without notice.
Search for vulnerabilities
Vulnerability details: VCID-wn11-8xkr-tffb
Vulnerability ID VCID-wn11-8xkr-tffb
Aliases CVE-2026-42280
GHSA-8qjv-jj2q-x832
Summary 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.
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-863 Incorrect Authorization
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00053 https://api.first.org/data/v1/epss?cve=CVE-2026-42280
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-8qjv-jj2q-x832
cvssv3.1 7.1 https://github.com/auth0/auth0.js
generic_textual HIGH https://github.com/auth0/auth0.js
cvssv3.1 7.1 https://github.com/auth0/auth0.js/security/advisories/GHSA-8qjv-jj2q-x832
cvssv3.1_qr HIGH https://github.com/auth0/auth0.js/security/advisories/GHSA-8qjv-jj2q-x832
generic_textual HIGH https://github.com/auth0/auth0.js/security/advisories/GHSA-8qjv-jj2q-x832
ssvc Track https://github.com/auth0/auth0.js/security/advisories/GHSA-8qjv-jj2q-x832
cvssv3.1 7.1 https://nvd.nist.gov/vuln/detail/CVE-2026-42280
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2026-42280
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2026-42280
https://github.com/auth0/auth0.js
https://nvd.nist.gov/vuln/detail/CVE-2026-42280
GHSA-8qjv-jj2q-x832 https://github.com/advisories/GHSA-8qjv-jj2q-x832
GHSA-8qjv-jj2q-x832 https://github.com/auth0/auth0.js/security/advisories/GHSA-8qjv-jj2q-x832
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N Found at https://github.com/auth0/auth0.js
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N Found at https://github.com/auth0/auth0.js/security/advisories/GHSA-8qjv-jj2q-x832
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-05-28T15:36:47Z/ Found at https://github.com/auth0/auth0.js/security/advisories/GHSA-8qjv-jj2q-x832
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2026-42280
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.17048
EPSS Score 0.00053
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-11T16:44:21.570123+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2026/42xxx/CVE-2026-42280.json 38.6.0