CVE-2026-82291

HeyForm versions before 3.0.0-rc.8 reflect the request Origin header in CORS responses while simultaneously allowing credentials. This misconfiguration enables attackers to execute authenticated GraphQL queries from a malicious page visited by a logged-in user, granting access to workspaces, proj...

CVE-2026-82287 Rybbit Reflects Any Origin in CORS Responses While Allowing Credentials

Rybbit before 2.7.0 contains a CORS misconfiguration vulnerability that allows attackers to bypass origin restrictions by reflecting any request origin in Access-Control-Allow-Origin responses while credentials are enabled. Attackers can issue credentialed cross-origin requests from any website t...

CVE-2026-82291: Permissive Cross-domain Policy with Untrusted Domains

HeyForm before 3.0.0-rc.8 reflects the request Origin header in CORS responses while allowing credentials, enabling cross-origin requests with authentication. Attackers can execute authenticated GraphQL queries from malicious pages visited by logged-in users to access workspaces, projects, forms,...

EUVD-2026-67027

tiger-slack started its MCP HTTP transport without enabling the host allow-list the underlying SDK provides. mcp/src/httpServer.ts called the shared httpServerFactory helper and never set the DNS-rebinding-protection option, so the transport accepted a request whatever host it named, and a page i...

GHSA-RGR9-R7MJ-MF6X Tina: Cross-origin `POST /media/upload/*` requests can write arbitrary files into the Tina dev server media root

Summary A browser-based cross-origin request flaw in the Tina dev server allows an attacker-controlled website to cause arbitrary file creation inside the configured media upload directory on a developer machine running tinacms dev. No manual file upload is required. The attacker page builds the...

Tina: Cross-origin `POST /media/upload/*` requests can write arbitrary files into the Tina dev server media root

Summary A browser-based cross-origin request flaw in the Tina dev server allows an attacker-controlled website to cause arbitrary file creation inside the configured media upload directory on a developer machine running tinacms dev. No manual file upload is required. The attacker page builds the...

CVE-2026-63407

The Grav API Plugin (getgrav/grav-plugin-api) for Grav CMS had a CORS misconfiguration in its CorsMiddleware. Prior to version 1.0.0-rc.16 , the middleware returned Access-Control-Allow-Origin: * and permissive OPTIONS responses on authenticated /api/v1 endpoints. Because authentication uses the ...

PT-2026-80310

Summary A browser-based cross-origin request flaw in the Tina dev server allows an attacker-controlled website to cause arbitrary file creation inside the configured media upload directory on a developer machine running tinacms dev. No manual file upload is required. The attacker page builds the...

CVE-2026-43971 Link Header Directive Smuggling via Unescaped target/rel/Attribute Keys in cow_link:link/1

Improper Encoding or Escaping of Output vulnerability in ninenines cowlib allows Link header directive smuggling via unescaped special characters in cowlink:link/1. cowlink:dolink/1 in cowlib interpolates the target URI, rel value, and attribute keys directly into the serialized Link: header valu...

CVE-2025-27621

UpTrain is an open-source platform to evaluate and improve generative AI applications. In version 0.7.1 and prior, the UpTrain backend creates a new default user with a static username, where the username is also used as the default API key. The UpTrain backend also has an open CORS policy. Using...

EUVD-2025-210733

UpTrain is an open-source platform to evaluate and improve generative AI applications. In version 0.7.1 and prior, the UpTrain backend creates a new default user with a static username, where the username is also used as the default API key. The UpTrain backend also has an open CORS policy. Using...

CVE-2025-27621

UpTrain is an open-source platform to evaluate and improve generative AI applications. In version 0.7.1 and prior, the UpTrain backend creates a new default user with a static username, where the username is also used as the default API key. The UpTrain backend also has an open CORS policy. Using...

PYSEC-2026-3977

opensslencrypt versions before 1.4.0 configure CORS with alloworigins set to wildcard and allowcredentials enabled to true. Attackers can create malicious websites that make authenticated cross-origin requests to the API on behalf of any user who visits them...

CVE-2026-74881 openssl_encrypt before 1.4.0 CORS Misconfiguration via Wildcard Origins

opensslencrypt versions before 1.4.0 configure CORS with alloworigins set to wildcard and allowcredentials enabled to true. Attackers can create malicious websites that make authenticated cross-origin requests to the API on behalf of any user who visits them...

EUVD-2026-53326

In Eclipse Theia versions up to and including 1.73.1, the @theia/filesystem backend binds POST /file-upload in every filesystem-enabled deployment. The handler takes an attacker-supplied absolute path from the multipart uri field and calls fs.movetmp, target, overwrite: true with no workspace...

Astro: composable `astro/hono` pipeline bypasses `security.checkOrigin` when `middleware()` is absent or misordered

Summary In the composable astro/hono pipeline, the security.checkOrigin protection is only installed by the middleware primitive. The actions and pages primitives each dispatch to user code independently, so a pipeline that mounts either primitive before or without middleware will bypass the orig...

CVE-2026-61736: Permissive Cross-domain Policy with Untrusted Domains

LightRAG provides simple and fast retrieval-augmented generation. Prior to 1.5.4, the server defaults to CORSORIGINS= combined with allowcredentials=True in lightrag/api/lightragserver.py, causing Starlette CORSMiddleware to effectively whitelist every origin for credentialed cross-origin request...

CVE-2026-57111 Apache Helix REST: Permissive CORS Configuration in REST API Allows Unrestricted Cross-Origin

Permissive Cross-Origin Resource Sharing CORS in the REST API helix-rest, org.apache.helix.rest.server.filters.CORSFilter in Apache Helix through 2.0.0 on all platforms allows a remote attacker controlling a web page visited by an authorized user to read responses from and issue cross-origin...

CVE-2026-58656: Use of GET Request Method With Sensitive Query Strings

Grav API plugin before v1.0.0-rc.16 accepts JWT tokens via the ?token= URL query parameter and responds with Access-Control-Allow-Origin: , allowing unauthenticated attackers to make fully authenticated cross-origin API requests from any malicious website. Attackers who obtain a leaked JWT token...

GO-2026-5918 Coder's workspace app CORS origin check can be bypassed via UUID-based subdomain spoofing in github.com/coder/coder

Coder's workspace app CORS origin check can be bypassed via UUID-based subdomain spoofing in github.com/coder/coder...