CVE-2026-54603

Summary (CVE-2026-54603) OAuth2 (Ruby) versions 0.4.0 through 2.0.21 leak credentials via protocol-relative redirects during the OAuth2::Client#request flow. When a 301/302/303/307 redirect’s Location header is protocol-relative (//host/...), the client’s base URL is overridden and the original A...

Open Redirect

Overview Affected versions of this package are vulnerable to Open Redirect via the OAuth2Client function. An attacker can redirect users to arbitrary external sites by crafting a malicious link and tricking them into clicking it. Remediation A fix was pushed into the master branch but not yet...

CVE-2026-11477 hs-web hsweb-framework OAuth2 Client OAuth2Client.java OAuth2Client redirect

A vulnerability was detected in hs-web hsweb-framework up to 5.0.1. This affects the function OAuth2Client of the file hsweb-authorization/hsweb-authorization-oauth2/src/main/java/org/hswebframework/web/oauth2/server/OAuth2Client.java of the component OAuth2 Client. The manipulation results in op...

CVE-2026-11477

The CVE-2026-11477 affects hs-web hsweb-framework up to 5.0.1, specifically the OAuth2Client in hsweb-authorization/hsweb-authorization-oauth2/src/main/java/org/hswebframework/web/oauth2/server/OAuth2Client.java. The issue enables an open redirect due to manipulation of this component, with remot...

PT-2026-47239

A vulnerability was detected in hs-web hsweb-framework up to 5.0.1. This affects the function OAuth2Client of the file hsweb-authorization/hsweb-authorization-oauth2/src/main/java/org/hswebframework/web/oauth2/server/OAuth2Client.java of the component OAuth2 Client. The manipulation results in op...

Nextcloud Security Breach

Nextcloud is an open source suite of self-hosted file synchronization and sharing communication application platform from Nextcloud, Germany. A security vulnerability exists in Nextcloud Server. An attacker could use this vulnerability to brute-force break the client secrets of a configured OAuth...

GHSA-32VJ-V39G-JH23 spring-security-oauth2-client vulnerable to Privilege Escalation

Spring Security, versions 5.7 prior to 5.7.5, and 5.6 prior to 5.6.9, and older unsupported versions could be susceptible to a privilege escalation under certain conditions. A malicious user or attacker can modify a request initiated by the Client via the browser to the Authorization Server which...