The vulnerability of the mechanism for checking OAuth2 scopes in the Gitea repository management system allows a hacker to increase their privileges.

The vulnerability of the mechanism for checking the scopes of OAuth2 tokens in the Gitea Git repository management system is related to access control errors. Exploiting this vulnerability can allow a malicious actor to increase their privileges remotely...

SUSE CVE-2026-34454

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. A regression introduced in 7.11.0 prevents OAuth2 Proxy from clearing the session cookie when rendering the sign-in page. In deployments that rely on the sign-in page as part of their logout flow, a user may be...

SUSE CVE-2026-34457

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. Versions prior to 7.15.2 contain a configuration-dependent authentication bypass in deployments where OAuth2 Proxy is used with an authrequest-style integration such as nginx authrequest and either...

SUSE CVE-2026-40574

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. Prior to 7.15.2, an authorization bypass exists in OAuth2 Proxy as part of the emaildomain enforcement option. An attacker may be able to authenticate with an email claim such as [email protected]@company.com and...

SUSE 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...

SUSE 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...

CVE-2026-67437

OliveTin gives access to predefined shell commands from a web interface. From 3000.0.0 until 3000.17.0, the service/internal/auth/otoauth2/restapiauthoauth2.go OAuth2 login handler stores per-login state in the registeredStates map on every /oauth/login request without expiring, deleting, or...

CVE-2026-67437

OliveTin: The CVE-2026-67437 issue is in the OAuth2 login path (service/internal/auth/otoauth2/restapi_auth_oauth2.go) where per-login state is stored in an unbounded registeredStates map on every /oauth/login request. This can allow an unauthenticated attacker to exhaust memory and cause a denia...

ROOT-APP-MAVEN-CVE-2026-22748 CVE-2026-22748 in io.root.org.springframework.security:spring-security-oauth2-jose - Patched by Root

Root has patched CVE-2026-22748 in the io.root.org.springframework.security:spring-security-oauth2-jose package for Root:Maven. Multiple fixed versions available...

ROOT-APP-MAVEN-CVE-2024-22258 CVE-2024-22258 in io.root.org.springframework.security:spring-security-oauth2-authorization-server - Patched by Root

Root has patched CVE-2024-22258 in the io.root.org.springframework.security:spring-security-oauth2-authorization-server package for Root:Maven. Multiple fixed versions available...

CVE-2026-54603

creationtimestamp| type| source ---|---|--- 2026-07-28 18:35:08+00:00| published-proof-of-concept| https://github.com/ruby-oauth/oauth2/security/advisories/GHSA-pp92-crg2-gfv9 2026-07-28 20:31:48+00:00| seen| https://gist.github.com/alon710/76a4f64bf3e94be3974678cdc55c68d9...

CVE-2026-54603

OAuth2 is a Ruby wrapper for the OAuth 2.0 and 2.1 authorization frameworks, including OpenID Connect OIDC. From 0.4.0 to 2.0.21, a protocol-relative redirect Location returned to OAuth2::Clientrequest overrides the request authority, so the bearer Authorization header is sent to an...

CVE-2026-54603

OAuth2 is a Ruby wrapper for the OAuth 2.0 and 2.1 authorization frameworks, including OpenID Connect OIDC. From 0.4.0 to 2.0.21, a protocol-relative redirect Location returned to OAuth2::Clientrequest overrides the request authority, so the bearer Authorization header is sent to an...

CVE-2026-54603 OAuth2::Client#request: Protocol-relative redirect Location overrides authority, leaking bearer Authorization to attacker host

OAuth2 is a Ruby wrapper for the OAuth 2.0 and 2.1 authorization frameworks, including OpenID Connect OIDC. From 0.4.0 to 2.0.21, a protocol-relative redirect Location returned to OAuth2::Clientrequest overrides the request authority, so the bearer Authorization header is sent to an...

CVE-2026-54603

OAuth2 is a Ruby wrapper for the OAuth 2.0 and 2.1 authorization frameworks, including OpenID Connect OIDC. From 0.4.0 to 2.0.21, a protocol-relative redirect Location returned to OAuth2::Clientrequest overrides the request authority, so the bearer Authorization header is sent to an...

CVE-2026-54603 OAuth2::Client#request: Protocol-relative redirect Location overrides authority, leaking bearer Authorization to attacker host

OAuth2 is a Ruby wrapper for the OAuth 2.0 and 2.1 authorization frameworks, including OpenID Connect OIDC. From 0.4.0 to 2.0.21, a protocol-relative redirect Location returned to OAuth2::Clientrequest overrides the request authority, so the bearer Authorization header is sent to an...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS via the wap/authorize.ftl consent template in the OAuth2/OIDC consent page. An attacker can execute arbitrary JavaScript in the OpenAM origin by sending a victim with an active session a crafted display=wap...

LiteLLM: MCP Authentication Bypass via OAuth2 Passthrough Fallback

Impact LiteLLM's MCP Streamable HTTP endpoint could allow an unauthenticated attacker to establish an authenticated MCP session using an arbitrary Bearer token. The MCP auth handler supported OAuth2 passthrough for upstream MCP servers, but the fallback path could replace failed LiteLLM key...

@0xlimao/n8n-nodes-ethereum (>=1.0.0, <=1.0.1), @aayshian/n8n-aisensy-ay19 (0.0.1) +112 more potentially affected by CVE-2026-65594 via @n8n/client-oauth2 (>=1.0.0, <=1.11.1)

@n8n/client-oauth2 NPM version =1.0.0, =1.0.0, =0.0.1, =1.0.0, =0.0.1, =0.0.1, =0.3.6, =0.1.0, =1.0.0, =0.1.4, =1.1.3, =1.1.6 and more Source cves: CVE-2026-65594 Source advisory: SNYK:JS-N8NCLIENTOAUTH2-18322332...

@n8n/backend-test-utils (1.30.0), @n8n/db (1.30.0) +3 more potentially affected by CVE-2026-65594 via @n8n/client-oauth2 (1.12.0)

@n8n/client-oauth2 NPM version 1.12.0 is affected by a known vulnerability. The following packages have a transitive dependency on @n8n/client-oauth2 and may be impacted: - @n8n/backend-test-utils 1.30.0 - @n8n/db 1.30.0 - @n8n/scheduler 0.2.0 - @n8n/task-runner 2.30.0 - n8n-core 2.30.0 Source...