Vulnerability in Auth0 Express-Openid-Connect
CVE-2021-41246
Express OpenID Connect is express JS middleware implementing sign on for Express web apps using OpenID Connect. Versions before and including `2.5.1` do not regenerate the session id and session cookie when user logs in. This behavior opens up the application to various session fixation vulnerabilities. Versions `2.5.2` contains a patch for this issue.
EPSS: 0.009 (55.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N.
Affected products
- Auth0 Express-openid-connect — versions >= 2.3.0, < 2.5.2
- Auth0 Express_openid_connect
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Third Party Advisory, x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2021-41246?
- CVE-2021-41246 is a medium-severity vulnerability in Auth0 Express-Openid-Connect, classified under Session Fixation. CVSS score: 4.6/10. Published 2021-12-09.
- How severe is CVE-2021-41246?
- Medium severity. CVSS v3 base score is 4.6 out of 10.