Vulnerability in Oauth2-proxy
CVE-2025-54576
OAuth2-Proxy is an open-source tool that can act as either a standalone reverse proxy or a middleware component integrated into existing reverse proxy or load balancer setups. In versions 7.10.0 and below, oauth2-proxy deployments are vuln…
EPSS: 0.011 (62.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Oauth2-proxy — versions < 7.11.0
- Oauth2_proxy_project Oauth2_proxy
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Mitigation, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Product, x_refsource_MISC)
- security-advisories@github.com (Product, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
- security-advisories@github.com (Product, x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-54576?
- CVE-2025-54576 is a critical-severity vulnerability in Oauth2-proxy, classified under Authentication Bypass by Spoofing. CVSS score: 9.1/10. Published 2025-07-30.
- How severe is CVE-2025-54576?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2025-54576 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.