PYSEC-2026-3667 Glances: REST API CORS Credentials Guard Uses Exact-Match Instead of Membership Test — Bypassed by Any Multi-Origin Allowlist Containing the Wildcard

Summary Glances's REST API server includes a documented safety check intended to guarantee that corscredentials=True can never be combined with an unrestricted CORS origin allowlist. The check compares the configured origin list to the wildcard using exact list equality corsorigins == "" instead ...

CVE-2026-54069 SiYuan: Unauthenticated Admin API Access via Blanket chrome-extension:// Origin Allowlist

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, SiYuan Note's kernel HTTP server unconditionally trusts all chrome-extension:// origins, granting RoleAdministrator access to every installed browser extension without any authentication. Combined with the default empt...

CVE-2026-37737

sanic-cors version 2.2.0 and prior contains an improper regular expression in the trymatch function in saniccors/core.py that uses re.match without end-anchoring. This allows an attacker to bypass CORS origin allowlists by registering a domain that begins with a trusted origin string, to gain...

GHSA-94JW-HQVJ-VW74 sanic-cors contains an improper regular expression in the try_match() function

sanic-cors version 2.2.0 and prior contains an improper regular expression in the trymatch function in saniccors/core.py that uses re.match without end-anchoring. This allows an attacker to bypass CORS origin allowlists by registering a domain that begins with a trusted origin string, to gain...

CVE-2026-37737

sanic-cors version 2.2.0 and prior contains an improper regular expression in the trymatch function in saniccors/core.py that uses re.match without end-anchoring. This allows an attacker to bypass CORS origin allowlists by registering a domain that begins with a trusted origin string, to gain...

EUVD-2026-34844

sanic-cors version 2.2.0 and prior contains an improper regular expression in the trymatch function in saniccors/core.py that uses re.match without end-anchoring. This allows an attacker to bypass CORS origin allowlists by registering a domain that begins with a trusted origin string, to gain...

CVE-2026-37737

sanic-cors version 2.2.0 and prior contains an improper regular expression in the trymatch function in saniccors/core.py that uses re.match without end-anchoring. This allows an attacker to bypass CORS origin allowlists by registering a domain that begins with a trusted origin string, to gain...

CVE-2026-37737

sanic-cors version 2.2.0 and prior contains an improper regular expression in the trymatch function in saniccors/core.py that uses re.match without end-anchoring. This allows an attacker to bypass CORS origin allowlists by registering a domain that begins with a trusted origin string, to gain...

dynoxide: DNS rebinding and cross-origin CSRF via MCP HTTP transport

Summary dynoxide's MCP HTTP transport was vulnerable to DNS rebinding via its transitive rmcp dependency, plus a related cross-origin CSRF gap. A malicious web page could make the user's browser send requests to a local dynoxide mcp --http or dynoxide serve --mcp server with a non-loopback Host...

DNS rebinding and cross-origin CSRF in dynoxide's MCP HTTP transport

dynoxide's MCP HTTP transport was vulnerable to DNS rebinding via its transitive rmcp dependency, plus a related cross-origin CSRF gap. A malicious web page could make the user's browser send requests to a local dynoxide mcp --http or dynoxide serve --mcp server with a non-loopback Host header,...

CVE-2026-34373

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.66 and 9.7.0-alpha.10, the GraphQL API endpoint does not respect the allowOrigin server option and unconditionally allows cross-origin requests from any website. This...

Claude Extension Flaw Enabled Zero-Click XSS Prompt Injection via Any Website

Cybersecurity researchers have disclosed a vulnerability in Anthropic's Claude Google Chrome Extension that could have been exploited to trigger malicious prompts simply by visiting a web page. The flaw "allowed any website to silently inject prompts into that assistant as if the user wrote them,...

@grackle-ai/server has Missing WebSocket Origin Header Validation

Impact The WebSocket upgrade handler in the server validates authentication API key token or session cookie but does not check the Origin header. A malicious webpage on a different origin could initiate a WebSocket connection to ws://localhost:3000/ws if it can leverage the user's session cookie...

CVE-2026-25478

Litestar is an Asynchronous Server Gateway Interface ASGI framework. Prior to 2.20.0, CORSConfig.allowedoriginsregex is constructed using a regex built from configured allowlist values and used with fullmatch for validation. Because metacharacters are not escaped, a malicious origin can match...

PYSEC-2026-2195

Litestar is an Asynchronous Server Gateway Interface ASGI framework. Prior to 2.20.0, CORSConfig.allowedoriginsregex is constructed using a regex built from configured allowlist values and used with fullmatch for validation. Because metacharacters are not escaped, a malicious origin can match...

CVE-2026-25478 Litestar has a CORS origin allowlist bypass due to unescaped regex metacharacters in allowed origins

Litestar is an Asynchronous Server Gateway Interface ASGI framework. Prior to 2.20.0, CORSConfig.allowedoriginsregex is constructed using a regex built from configured allowlist values and used with fullmatch for validation. Because metacharacters are not escaped, a malicious origin can match...

CVE-2026-25478

Litestar (ASGI framework) contains a vulnerability in CORSConfig.allowed_origins_regex prior to 2.20.0 where a regex built from allowlist values is used with fullmatch without escaping metacharacters, allowing a malicious origin to match unexpectedly. Impact is indicated as HIGH (CVSS 3.1: AV:N/A...