What is CVE-2026-41059?

CVE-2026-41059 is a high-severity vulnerability in Oauth2-proxy, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 8.2/10. Published 2026-04-21.

How severe is CVE-2026-41059?

High severity. CVSS v3 base score is 8.2 out of 10.

Vulnerability in Oauth2-proxy

CVE-2026-41059

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. Versions 7.5.0 through 7.15.1 have a configuration-dependent authentication bypass. Deployments are affected when all of the following are true: Use of `s…

EPSS: 0.003 (54.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.

Affected products

Oauth2-proxy — versions >= 7.5.0, < 7.15.2

Weakness classification (CWE)

CWE-288 — Authentication Bypass Using an Alternate Path or Channel

References

https://github.com/oauth2-proxy/oauth2-proxy/security/advisories/GHSA-pxq7-h93f-9jrg (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-41059?: CVE-2026-41059 is a high-severity vulnerability in Oauth2-proxy, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 8.2/10. Published 2026-04-21.
How severe is CVE-2026-41059?: High severity. CVSS v3 base score is 8.2 out of 10.