CVE-2026-54618

Obsidian Web MCP , a remote MCP server for Obsidian vaults, contained an authentication bypass prior to version 0.2.0. The /oauth/authorize endpoint issued an authorization code without any login, consent, or session check, and /oauth/token allowed exchanging that code for the static VAULT_MCP_TO...

CVE-2026-54618 Obsidian Web MCP: Unauthenticated vault access: /oauth/authorize auto-approves without authenticating the user

Obsidian Web MCP is a secure remote MCP server for Obsidian vaults. Prior to 0.2.0, /oauth/authorize issues an authorization code without a login, consent, or session check, and /oauth/token can exchange that code for the static VAULTMCPTOKEN without authenticating a client. An unauthenticated...

CVE-2026-62280 OpenAM Reflected XSS in the OAuth2/OIDC `wap` consent page

Open Access Management OpenAM is an access management solution. From 13.0.0 until 16.1.2, the OAuth2 authorize endpoint's display=wap consent page reflects request-derived values through ConsentRequiredResource and wap/authorize.ftl without HTML escaping. An attacker can induce a user with an...

CVE-2026-54072

Authorizer , an open-source self-hostable authentication and authorization server, is affected by an unvalidated redirect_uri in its /authorize endpoint prior to version 2.2.1 . When response_type=token or response_type=id_token, the server appends access_token , id_token , and refresh_token as q...

CVE-2026-54072 Authorizer: Unvalidated redirect_uri in /authorize leaks OAuth2 tokens to attacker-controlled URL

Authorizer is an open-source, self-hostable authentication and authorization server. Prior to version 2.2.1, the /authorize endpoint accepts any redirecturi without validating it against AllowedOrigins. When responsetype=token or responsetype=idtoken, the server appends accesstoken, idtoken, and...

CVE-2026-82753

ash_authentication_oauth2_server (ash-project) suffers from an Allocation of Resources Without Limits or Throttling vulnerability in the /authorize endpoint when Client ID Metadata Documents (CIMD) are enabled. The resolve_client/3 function fetches a metadata document for each new URL-shaped clie...

GHSA-RXPG-WJF8-QV9C Yamcs has Reflected XSS in the URL of the Authorize Endpoint

Attack type: Unauthenticated remote Impact: Attackers can execute arbitrary JavaScript in a user's browser, including obtaining a user's session token and refresh token. Affected components: authorize.html, AuthHandler.java, HandlerContext.java A Reflected Cross-Site Scripting vulnerability...

Yamcs has Reflected XSS in the URL of the Authorize Endpoint

Attack type: Unauthenticated remote Impact: Attackers can execute arbitrary JavaScript in a user's browser, including obtaining a user's session token and refresh token. Affected components: authorize.html, AuthHandler.java, HandlerContext.java A Reflected Cross-Site Scripting vulnerability...

CVE-2026-55549 Yamcs: Reflected XSS in the URL of the Authorize Endpoint

Yamcs is a mission control framework. Prior to 5.9.4, Yamcs reflects an attacker-controlled redirecturi parameter from GET /auth/authorize into yamcs-core/src/main/resources/auth/templates/authorize.html without adequate HTML escaping by yamcs-core/src/main/java/org/yamcs/http/auth/AuthHandler.ja...

EUVD-2026-67841

Yamcs is a mission control framework. Prior to 5.9.4, Yamcs reflects an attacker-controlled redirecturi parameter from GET /auth/authorize into yamcs-core/src/main/resources/auth/templates/authorize.html without adequate HTML escaping by yamcs-core/src/main/java/org/yamcs/http/auth/AuthHandler.ja...

Pocket-ID has an Open Redirect on the OIDC /authorize page via unvalidated redirect_uri with prompt=none

Summary The OIDC authorization page in the pocket-id frontend redirects the browser to an attacker-controlled URL without consulting the backend redirecturi allow-list when the request uses prompt=none. An attacker who knows a valid clientid can craft an /authorize link that sends a victim or a...

GHSA-2WVM-8MVP-22QV Pocket-ID has an Open Redirect on the OIDC /authorize page via unvalidated redirect_uri with prompt=none

Summary The OIDC authorization page in the pocket-id frontend redirects the browser to an attacker-controlled URL without consulting the backend redirecturi allow-list when the request uses prompt=none. An attacker who knows a valid clientid can craft an /authorize link that sends a victim or a...

CVE-2026-55834 Pocket ID: Open Redirect on the OIDC /authorize page via unvalidated redirect_uri with prompt=none

Pocket ID is an OIDC provider that allows users to authenticate with their passkeys to services. From 2.6.0 until 2.9.0, frontend/src/routes/authorize/+page.ts reads the redirecturi query parameter and frontend/src/routes/authorize/+page.svelte uses the raw callbackURL in redirectWithError when...

EUVD-2026-67828

Pocket ID is an OIDC provider that allows users to authenticate with their passkeys to services. From 2.6.0 until 2.9.0, frontend/src/routes/authorize/+page.ts reads the redirecturi query parameter and frontend/src/routes/authorize/+page.svelte uses the raw callbackURL in redirectWithError when...

CVE-2026-59717 Home Assistant Companion: `homeassistant://invite` Deep Link Credential Phishing

Home Assistant is open source home automation software focused on local control and privacy. Prior to 2026.6.1, the Android Companion app is vulnerable to an open redirect. The app passes the URL fragment from a homeassistant://invite deep link into the onboarding flow without ever displaying the...

CVE-2026-70556 Hubzilla version prior to 11.4 CSRF via OAuth2 /authorize Endpoint App Registration

Hubzilla versions prior to 11.4 contains a cross-site request forgery vulnerability in the OAuth2 /authorize endpoint handled by Zotlabs\Module\Authorize::post that allows unauthenticated attackers to register arbitrary OAuth2 applications under an authenticated user's account by submitting a...

CVE-2026-70556 Hubzilla version prior to 11.4 CSRF via OAuth2 /authorize Endpoint App Registration

Hubzilla versions prior to 11.4 contains a cross-site request forgery vulnerability in the OAuth2 /authorize endpoint handled by Zotlabs\Module\Authorize::post that allows unauthenticated attackers to register arbitrary OAuth2 applications under an authenticated user's account by submitting a...

CVE-2026-70556

Hubzilla 11.2.1 contains a CSRF vulnerability in the OAuth2 /authorize endpoint (Zotlabs\Module\Authorize::post()) that lets unauthenticated attackers silently register arbitrary OAuth2 applications under a victim’s authenticated account by submitting a cross-origin POST without CSRF token or Ori...

CVE-2026-70556

Hubzilla versions prior to 11.4 contains a cross-site request forgery vulnerability in the OAuth2 /authorize endpoint handled by Zotlabs\Module\Authorize::post that allows unauthenticated attackers to register arbitrary OAuth2 applications under an authenticated user's account by submitting a...

CVE-2026-70474

Flowise is a drag-and-drop user interface for building customized large language model LLM flows. Prior to 3.1.3, Flowise has three OAuth2 credential endpoints that look up credentials by id alone with no workspaceId filter. The authorize, callback, and refresh handlers query the Credential table...