CVE-2021-41246
MEDIUM4.6EPSS 0.38%Session fixation in express-openid-connect
Published: 12/9/2021Modified: 3/13/2026
Also known as:GHSA-7rg2-qxmf-hhx9
Description
### Overview Versions `2.3.0` up to 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. ### Am I affected? You are affected by this vulnerability if you are using `express-openid-connect` version `2.3.0` up to and including `2.5.1` and use a custom session store. ### How to fix that? Upgrade to version `>= 2.5.2`. ### Will this update impact my users? The fix provided in patch will not affect your users.
Affected packages (1)
- npm/express-openid-connect>= 2.3.0, < 2.5.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.6 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N |
References (5)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2021-41246
- PATCHhttps://github.com/auth0/express-openid-connect
- WEBhttps://github.com/auth0/express-openid-connect/commit/5ab67ff2bd84f76674066b5e129b43ab5f2f430f
- WEBhttps://github.com/auth0/express-openid-connect/releases/tag/v2.5.2
- WEBhttps://github.com/auth0/express-openid-connect/security/advisories/GHSA-7rg2-qxmf-hhx9