CVE-2026-42280

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Source
https://cve.org/CVERecord?id=CVE-2026-42280
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42280.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-42280
Aliases
Published
2026-05-27T14:39:15Z
Modified
2026-10-21T02:57:49Z
Severity
  • 7.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N CVSS Calculator
Summary
Improper Permission Checking in Auth.js SDK
Details

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.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-863"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42280.json"
}
References

Affected packages

Git / github.com/auth0/auth0.js

Affected ranges

Type
GIT
Repo
https://github.com/auth0/auth0.js
Events
Introduced
50fbf79f858b75ecf7cde344e79586af064d6220
Fixed
5706408161535c9df05349c01dcd578139e280be
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "8.11.0"
                },
                {
                    "last_affected":  "9.32.0"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "cpe":  "cpe:2.3:a:auth0:auth0.js:*:*:*:*:*:node.js:*:*",
            "range":  [
                {
                    "introduced":  "8.11.0"
                },
                {
                    "fixed":  "10.0.0"
                }
            ],
            "source":  "CPE_RANGE"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42280.json"