EUVD-2026-65698

Coroot's unauthenticated MCP OAuth dynamic client registration endpoint accepts any syntactically valid redirect URI without validation, allowing attackers to register clients pointing to attacker-controlled hosts. Attackers can send authorization URLs to signed-in users, capture their...

CVE-2023-23924

CVE-2023-23924 Dompdf عرضة لفشل التحقق من صحة URI عند تحليل SVG · CVE-2023-23924 · GitHub Advisory Database https://github.com/advisories/GHSA-3cw5-7cxw-v5qg التشغيل root@kitploit: Terminal 1 ❯ cd www ❯ php -S 127.0.0.1:9000 -t . Terminal 2 ❯ cd src ❯ php cve202323924.php التحقق تحقق من أن الأمر...

CVE-2026-79662

Ech0 through 4.5.6 contains an OAuth redirect URI validation vulnerability in parseAndValidateClientRedirect internal/service/auth/auth.go that compares only the scheme and host of the client-supplied redirecturi against the admin-configured allowlist, ignoring path, query, and fragment component...

BIT-KEYCLOAK-2026-9086 Keycloak: keycloak: cross-site scripting (xss) via case-insensitive uri validation bypass

A flaw was found in Keycloak. A remote attacker with administrative privileges, specifically those with manage-client permission or access to client registration endpoints, could bypass client Uniform Resource Identifier URI validation. This is achieved by registering a malicious client with a...

CVE-2026-79662

Ech0 through 4.5.6 contains an OAuth redirect URI validation bypass in parseAndValidateClientRedirect (internal/service/auth/auth.go). The function compares only the scheme and host of the client-supplied redirect_uri against the admin-configured allowlist, ignoring path, query, and fragment comp...

CVE-2026-9086-poc

CVE-2026-9086: Keycloak URI-Schema-Validierungs-Bypass XSS PoC Englische Version Überblick Dieses Repository ist ein Proof of Concept PoC der Cross-Site-Scripting XSS-Schwachstelle CVE-2026-9086 in der Client-URI-Validierung von Keycloak. Das verwundbare Keycloak validierte die javascript:- und...

CVE-2026-11102-OAuth2-Implicit-Grant-Fragment-Hijacking

CVE-2026-11102 – Dirottamento del frammento nel flusso implicito OAuth2 Codice del programma Node.js + Exploit root@kitploit: // oauthserver.js - OAuth2 provider issuing tokens in fragment const express = require'express'; const app = express; app.get'/authorize', req, res = const redirectUri =...

dompurify: DOMPurify: URI validation bypass leads to cross-site scripting

A flaw was found in DOMPurify. An attacker can bypass URI validation by providing a specially crafted predicate function via EXTRAELEMENTHANDLING.attributeCheck. This allows unsafe protocols, such as javascript:, to persist after sanitization, potentially leading to DOM-based cross-site scripting...

CVE-2026-75627 Bastillion Authentication Bypass via Path-Prefix Routing Mismatch

Bastillion fails to properly validate request URI paths in its controller dispatcher, allowing unauthenticated attackers to bypass authentication filters by prefixing requests with arbitrary path segments. Attackers can access administrative controllers to read user listings, create manager...

CVE-2026-65912

A flaw was found in DOMPurify. An attacker can bypass URI validation by providing a specially crafted predicate function via EXTRAELEMENTHANDLING.attributeCheck. This allows unsafe protocols, such as javascript:, to persist after sanitization, potentially leading to DOM-based cross-site scripting...

EUVD-2026-58764

IBM Db2 Mirror for i 7.4, 7.5, and 7.6 could allow a remote attacker to bypass authentication and obtain or alter sensitive information due to improper validation of request URI path segments...

CVE-2026-17182

IBM Db2 Mirror for i 7.4, 7.5, and 7.6 could allow a remote attacker to bypass authentication and obtain or alter sensitive information due to improper validation of request URI path segments...

openstack-glance: OpenStack Glance: Server-Side Request Forgery leading to unauthorized internal network access

A flaw was found in OpenStack Glance. An authenticated user can exploit a Server-Side Request Forgery SSRF vulnerability within the web-download import feature. This vulnerability stems from inadequate validation of Uniform Resource Identifiers URIs, which can be circumvented using HTTP redirects...

dompurify: DOMPurify: URI validation bypass leads to cross-site scripting

A flaw was found in DOMPurify. An attacker can bypass URI validation by providing a specially crafted predicate function via EXTRAELEMENTHANDLING.attributeCheck. This allows unsafe protocols, such as javascript:, to persist after sanitization, potentially leading to DOM-based cross-site scripting...

EUVD-2026-51810

better-auth before 1.6.13 and pre-release builds 1.7.0-beta.0 through 1.7.0-beta.3 fail to validate the scheme of redirecturis registered via the deprecated oidc-provider plugin and the mcp plugin which wraps the same provider. An attacker can register an OAuth client with a javascript:...

CVE-2026-67345

MaxKey through 4.1.12, fixed in commit ddbb72f, contains an insufficient redirect URI validation vulnerability in DefaultRedirectResolver.hostMatches that allows remote attackers to hijack OAuth 2.0 authorization codes by supplying a crafted redirecturi whose hostname suffix matches a registered...

CVE-2026-67345 MaxKey 4.1.12 DefaultRedirectResolver OAuth Authorization Code Theft

MaxKey through 4.1.12, fixed in commit ddbb72f, contains an insufficient redirect URI validation vulnerability in DefaultRedirectResolver.hostMatches that allows remote attackers to hijack OAuth 2.0 authorization codes by supplying a crafted redirecturi whose hostname suffix matches a registered...

CVE-2026-17552 Plack::App::Prerender versions before 0.3.0 for Perl can proxy to an arbitrary host via unvalidated REQUEST_URI concatenation in call

Plack::App::Prerender versions before 0.3.0 for Perl can proxy to an arbitrary host via unvalidated REQUESTURI concatenation in call. When the rewrite base is a plain string, the REQUESTURI is appended to it, with no check that the path starts with a forward slash '/'. When the rewrite base does...

EUVD-2026-49142

proCertum SmartSign opens Certificate Practice Statement CPS URI without schema validation. An attacker can prepare arbitrary certificate with CPS URI pointing to a local executable file or any URL, sign a document with it, and send it to the victim. When the victim opens the document in the...

CVE-2026-65912

DOMPurify before 3.3.2 has a URI validation bypass when ADD_ATTR is used as a predicate via EXTRA_ELEMENT_HANDLING.attributeCheck. An attacker can craft a predicate to accept specific attribute/tag combinations, allowing unsafe protocols like javascript: to bypass validation and execute as DOM-ba...