Hermes Agent contains a DNS rebinding vulnerability in WebSocket endpoints that allows remote attackers to bypass Host and Origin validation

Hermes Agent before 0.16.0 contains a DNS rebinding vulnerability in WebSocket endpoints that allows remote attackers to bypass Host and Origin validation. FastAPI HTTP middleware does not execute for WebSocket upgrade requests on /api/pty, /api/ws, /api/pub, and /api/events endpoints, enabling...

PYSEC-2026-2510 Hermes Agent contains a DNS rebinding vulnerability in WebSocket endpoints that allows remote attackers to bypass Host and Origin validation

Hermes Agent before 0.16.0 contains a DNS rebinding vulnerability in WebSocket endpoints that allows remote attackers to bypass Host and Origin validation. FastAPI HTTP middleware does not execute for WebSocket upgrade requests on /api/pty, /api/ws, /api/pub, and /api/events endpoints, enabling...

Origin Validation Error

Overview Affected versions of this package are vulnerable to Origin Validation Error in the CheckAuth process. An attacker can gain unauthorized administrative access by sending requests from any Chrome or Chromium browser extension, allowing them to exfiltrate data, inject malicious scripts, and...

PT-2026-57359

Summary The /authorize endpoint accepts any redirect uri without validating it against AllowedOrigins. When response type=token or response type=id token, the server appends access token, id token, and refresh token as query parameters and issues a 302 redirect to the attacker-supplied URL. An...

PT-2026-57366

Name of the Vulnerable Software and Affected Versions Authorizer versions prior to 2.0.1 Description The /authorize endpoint fails to validate the redirect uri parameter against a list of allowed origins. When the response type is set to token or id token, the server appends the access token, id...

CVE-2026-55669: Origin Validation Error

ZITADEL is an open source identity management platform. Prior to 3.4.12 and 4.15.2, ZITADEL's external JWT Identity Provider validates a token's signature and issuer iss but not the audience aud claim, allowing a validly signed token from a trusted issuer for another relying party to be accepted ...

netty-resolver-dns: Netty: Information disclosure and data manipulation due to improper CNAME record validation

A flaw was found in Netty's DnsResolveContext. This vulnerability allows a remote attacker to achieve information disclosure or data manipulation by crafting malicious DNS responses. The flaw occurs because the DnsResolveContext fails to validate the origin bailiwick of CNAME records in DNS...

Missing Origin Validation in WebSockets

Overview Affected versions of this package are vulnerable to Missing Origin Validation in WebSockets via the CORSFilter process. An attacker can access sensitive administrative REST endpoints by enticing an authorized user to visit a malicious web page, which then issues cross-origin requests and...

[20260802] - Core - Improper CORS origin validation

An improper implementation prevented configured CORS origins from being properly validated in CORS requests...

CVE-2026-59723

Cline is an autonomous coding agent as an SDK, IDE extension, or CLI assistant. Prior to 3.0.30, the Cline Hub dashboard server launched by the cline dashboard command accepts WebSocket connections on the /browser endpoint without validating the Origin header, and when ROOMSECRET is unset for loc...

Cross-site Request Forgery (CSRF)

Overview waku is a ⛩️ The minimal React framework Affected versions of this package are vulnerable to Cross-site Request Forgery CSRF through the request process. An attacker can execute unauthorized server actions by sending cross-origin POST requests with CORS-safelisted content types, causing...

CVE-2026-59804

Midscene Bridge Server (affected: 1.10.3 and earlier) has a missing authentication and CORS misconfiguration that permits unauthenticated remote hijacking of active bridge sessions via a cross-origin WebSocket to the local Socket.IO server. The server does not validate Origin headers and requires...

CVE-2026-59804 Midscene Bridge Server - Session Hijack via Unauthenticated WebSocket

Midscene Bridge Server through 1.10.3, fixed in commit 86f4118, contains a missing authentication and CORS misconfiguration vulnerability that allows unauthenticated remote attackers to hijack active bridge sessions by opening a cross-origin WebSocket connection to the local Socket.IO server, whi...

Origin Validation Error

Overview Affected versions of this package are vulnerable to Origin Validation Error via the CookieJar process. An attacker can access or manipulate cookies belonging to other hosts by exploiting improper domain matching for IP-address or bare-numeric domains. Remediation Upgrade guzzlehttp/guzzl...

CVE-2026-55438: Origin Validation Error

Coder allows organizations to provision remote development environments via Terraform. Prior to versions 2.29.17, 2.32.7, 2.33.8, and 2.34.2, Coder's subdomain-based workspace app proxy allowed the same-owner CORS check to be bypassed. When a workspace-name subdomain segment parsed as a UUID, the...

CVE-2026-59804: Missing Origin Validation in WebSockets

Midscene Bridge Server through 1.10.3, fixed in commit 86f4118, contains a missing authentication and CORS misconfiguration vulnerability that allows unauthenticated remote attackers to hijack active bridge sessions by opening a cross-origin WebSocket connection to the local Socket.IO server, whi...

CVE-2026-59723: Origin Validation Error

Cline is an autonomous coding agent as an SDK, IDE extension, or CLI assistant. Prior to 3.0.30, the Cline Hub dashboard server launched by the cline dashboard command accepts WebSocket connections on the /browser endpoint without validating the Origin header, and when ROOMSECRET is unset for loc...

PYSEC-2026-1656 MLFlow is vulnerable to DNS rebinding attacks due to a lack of Origin header validation

MLFlow versions up to and including 3.4.0 are vulnerable to DNS rebinding attacks due to a lack of Origin header validation in the MLFlow REST server. This vulnerability allows malicious websites to bypass Same-Origin Policy protections and execute unauthorized calls against REST endpoints. An...

PYSEC-2026-1223 Bokeh server applications have Incomplete Origin Validation in WebSockets

This vulnerability allows for Cross-Site WebSocket Hijacking CSWSH of a deployed Bokeh server instance. Scope This vulnerability is only relevant to deployed Bokeh server instances. There is no impact on static HTML output, standalone embedded plots, or Jupyter notebook usage. This vulnerability...

Bokeh server applications have Incomplete Origin Validation in WebSockets

This vulnerability allows for Cross-Site WebSocket Hijacking CSWSH of a deployed Bokeh server instance. ScopeThis vulnerability is only relevant to deployed Bokeh server instances. There is no impact on static HTML output, standalone embedded plots, or Jupyter notebook usage. This vulnerability...