CVE-2026-41070

OpenVPN OAuth2 plugin flaw exists in the experimental plugin mode: from v1.26.3 to before v1.27.3, clients that do not support WebAuth/SSO (e.g., Linux openvpn CLI) could be admitted even when authentication logic denied access. Root cause: in handleAuthUserPassVerify, ClientAuthDeny wrote "0" to...

openvpn-auth-oauth2 授权问题漏洞

OpenVPN-Auth-OAuth2 is a single-signpoint login authentication integration tool developed by Jan-Otto Kröpke. In versions 1.26.3 to 1.27.3 of OpenVPN-Auth-OAuth2, there were authorization-related vulnerabilities. These vulnerabilities occurred when clients did not support WebAuth/SSO in...

Improper Authentication

Overview github.com/pocketbase/pocketbase/forms is a realtime backend in 1 file Affected versions of this package are vulnerable to Improper Authentication in the OAuth2 autolinking process. An attacker can gain unauthorized access to a victim's account by pre-registering an unverified user with...

CVE-2026-7679

A security flaw has been discovered in YunaiV yudao-cloud up to 2026.01. This impacts the function getAccessToken of the file yudao-module-system-biz/src/main/java/io/github/ruoyi/common/oauth2/service/impl/OAuth2TokenServiceImpl.java. Performing a manipulation results in improper authentication...

JLSEC-2026-437 When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer performs a redirect...

When an OAuth2 bearer token is used for an HTTPS transfer, and that transfer performs a redirect to a second URL, curl could leak that token to the second hostname under some circumstances. If the hostname that the first request is redirected to has information in the used .netrc file, with eithe...

CVE-2026-7679

A security flaw has been discovered in YunaiV yudao-cloud up to 2026.01. This impacts the function getAccessToken of the file yudao-module-system-biz/src/main/java/io/github/ruoyi/common/oauth2/service/impl/OAuth2TokenServiceImpl.java. Performing a manipulation results in improper authentication...

CVE-2026-7679

YunaiV yudao-cloud (up to 2026.01) is affected. The flaw resides in OAuth2TokenServiceImpl.java (getAccessToken) where manipulation leads to improper authentication. The issue is exploitable remotely with a PROOF-OF-CONCEPT exploit and no remediation details are provided in the available document...

CVE-2026-40575

A flaw was found in OAuth2 Proxy. When configured with --reverse-proxy and either --skip-auth-regex or --skip-auth-route, the proxy may trust a client-supplied X-Forwarded-Uri header. An unauthenticated remote attacker can exploit this by spoofing the header, leading to an authentication bypass...

CVE-2026-41059

A flaw was found in OAuth2 Proxy. An unauthenticated attacker can exploit a configuration-dependent authentication bypass by sending a crafted request containing a number sign in the path. This allows the OAuth2 Proxy to incorrectly match a public allowlist rule, leading to the exposure of...

CVE-2026-40574

A flaw was found in OAuth2 Proxy, a reverse proxy providing authentication using OAuth2 providers. A remote attacker can exploit an authorization bypass vulnerability by crafting a malicious email claim. This allows the attacker to bypass emaildomain restrictions, which are used to limit access t...

BIT-OAUTH2-PROXY-2026-40575 OAuth2 Proxy has an Authentication Bypass via X-Forwarded-Uri Header Spoofing

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. Versions 7.5.0 through 7.15.1 may trust a client-supplied X-Forwarded-Uri header when --reverse-proxy is enabled and --skip-auth-regex or --skip-auth-route is configured. An attacker can spoof this header so OAut...

GHSA-246W-JGMQ-88FG openvpn-auth-oauth2 returns FUNC_SUCCESS on client-deny, allowing unauthenticated VPN access

Summary When openvpn-auth-oauth2 is deployed in the experimental plugin mode shared library loaded by OpenVPN via the plugin directive, clients that do not support WebAuth/SSO e.g., the openvpn CLI on Linux are incorrectly admitted to the VPN despite being denied by the authentication logic. The...

GHSA-CVC6-Q2CP-2XHW Spring Security has Potential Security Misconfiguration when Using withIssuerLocation

Vulnerability in Spring Spring Security. When an application configures JWT decoding with NimbusJwtDecoder or NimbusReactiveJwtDecoder, it must configure an OAuth2TokenValidator separately, for example by calling setJwtValidator. This issue affects Spring Security: from 6.3.0 through 6.3.14, from...

CVE-2026-22748 Potential Security Misconfiguration when Using withIssuerLocation

Vulnerability in Spring Spring Security. When an application configures JWT decoding with NimbusJwtDecoder or NimbusReactiveJwtDecoder, it must configure an OAuth2TokenValidator separately, for example by calling setJwtValidator.This issue affects Spring Security: from 6.3.0 through 6.3.14, from...

CVE-2026-40575

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. Versions 7.5.0 through 7.15.1 may trust a client-supplied X-Forwarded-Uri header when --reverse-proxy is enabled and --skip-auth-regex or --skip-auth-route is configured. An attacker can spoof this header so OAut...

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 skipauthroutes or the legacy skipauthregex; use of patterns...

User Impersonation

Overview Affected versions of this package are vulnerable to User Impersonation via the X-Forwarded-Uri header when the --reverse-proxy setting is enabled and either --skip-auth-regex or --skip-auth-route is configured. An attacker can gain unauthorized access to protected routes by spoofing the...

User Impersonation

Overview Affected versions of this package are vulnerable to User Impersonation via the X-Forwarded-Uri header when the --reverse-proxy setting is enabled and either --skip-auth-regex or --skip-auth-route is configured. An attacker can gain unauthorized access to protected routes by spoofing the...

Authentication Bypass Using an Alternate Path or Channel

Overview Affected versions of this package are vulnerable to Authentication Bypass Using an Alternate Path or Channel in the processing of request paths containing a number sign or its encoded form %23 when using skipauthroutes or skipauthregex settings. An attacker can gain unauthorized access t...

Authentication Bypass Using an Alternate Path or Channel

Overview Affected versions of this package are vulnerable to Authentication Bypass Using an Alternate Path or Channel in the processing of request paths containing a number sign or its encoded form %23 when using skipauthroutes or skipauthregex settings. An attacker can gain unauthorized access t...