The Vercel Breach: OAuth Supply Chain Attack Exposes the Hidden Risk in Platform Environment Variables

An OAuth supply chain compromise at Vercel exposed how trusted third party apps and platform environment variables can bypass traditional defenses and amplify blast radius. This article examines the attack chain, underlying design tradeoffs, and what it reveals about modern PaaS and software supp...

MAL-2026-2905 Malicious code in simple-auth-basic (npm)

simple-auth-basic is a malicious npm package that when imported downloads a C2 dropper from https://coingecko-liard.vercel.app and executes it. --- -= Per source details. Do not edit below this line.=- Source: amazon-inspector c8802844b712eedf88f3862f4e836efd3a767ee4944f6ec3b8c3fbe849fd741b The...

Malicious code in sjs-biginteger (npm)

sjs-biginteger typosquats big.js on npm. Published April 7, 2026 by throwaway account vanes.s.p.orit.a, the package ships legitimate big.js source and hides its payload in a dependency: sjs-lint-build1. On install, the dependency’s postinstall hook fetches the attacker’s SSH public key from a C2...

MAL-2026-2527 Malicious code in sjs-biginteger (npm)

sjs-biginteger typosquats big.js on npm. Published April 7, 2026 by throwaway account vanes.s.p.orit.a, the package ships legitimate big.js source and hides its payload in a dependency: sjs-lint-build1. On install, the dependency’s postinstall hook fetches the attacker’s SSH public key from a C2...

Malicious code in sjs-lint-build1 (npm)

sjs-biginteger typosquats big.js on npm. Published April 7, 2026 by throwaway account vanes.s.p.orit.a, the package ships legitimate big.js source and hides its payload in a dependency: sjs-lint-build1. On install, the dependency’s postinstall hook fetches the attacker’s SSH public key from a C2...

Bringing Security Visibility to Vercel with Wiz

Giving developers and security teams a shared view of application risk as it evolves...

Astro: Unauthenticated Path Override via `x-astro-path` / `x_astro_path`

Summary The @astrojs/vercel serverless entrypoint reads the x-astro-path header and xastropath query parameter to rewrite the internal request path, with no authentication whatsoever. On deployments without Edge Middleware, this lets anyone bypass Vercel's platform-level path restrictions entirel...

EUVD-2026-14982

Astro: Unauthenticated Path Override via x-astro-path / xastropath...

GHSA-MR6Q-RP88-FX84 Astro: Unauthenticated Path Override via `x-astro-path` / `x_astro_path`

Summary The @astrojs/vercel serverless entrypoint reads the x-astro-path header and xastropath query parameter to rewrite the internal request path, with no authentication whatsoever. On deployments without Edge Middleware, this lets anyone bypass Vercel's platform-level path restrictions entirel...

CVE-2026-33768

Astro is a web framework. Prior to version 10.0.2, the @astrojs/vercel serverless entrypoint reads the x-astro-path header and xastropath query parameter to rewrite the internal request path, with no authentication whatsoever. On deployments without Edge Middleware, this lets anyone bypass Vercel...

Unintended Proxy or Intermediary ('Confused Deputy')

Overview @astrojs/vercel is a Deploy your site to Vercel Affected versions of this package are vulnerable to Unintended Proxy or Intermediary 'Confused Deputy' via the x-astro-path header or xastropath query parameter, which allows overriding internal request paths without authentication. An...

CVE-2026-33768

Astro is a web framework. Prior to version 10.0.2, the @astrojs/vercel serverless entrypoint reads the x-astro-path header and xastropath query parameter to rewrite the internal request path, with no authentication whatsoever. On deployments without Edge Middleware, this lets anyone bypass Vercel...

CVE-2026-33768

Astro: Unauthenticated Path Override via x-astro-path/x_astro_path affects Astro 5.18.1 + @astrojs/vercel 9.0.4 and Astro 6.0.3 + @astrojs/vercel 10.0.0, with patch in 10.0.2. The vulnerable code rewrites the internal request path from a caller-supplied header or query parameter without authentic...

CVE-2026-33768 Astro: Unauthenticated Path Override via `x-astro-path` / `x_astro_path`

Astro is a web framework. Prior to version 10.0.2, the @astrojs/vercel serverless entrypoint reads the x-astro-path header and xastropath query parameter to rewrite the internal request path, with no authentication whatsoever. On deployments without Edge Middleware, this lets anyone bypass Vercel...

CVE-2026-33768 Astro: Unauthenticated Path Override via `x-astro-path` / `x_astro_path`

Astro is a web framework. Prior to version 10.0.2, the @astrojs/vercel serverless entrypoint reads the x-astro-path header and xastropath query parameter to rewrite the internal request path, with no authentication whatsoever. On deployments without Edge Middleware, this lets anyone bypass Vercel...

CVE-2026-33768

Astro is a web framework. Prior to version 10.0.2, the @astrojs/vercel serverless entrypoint reads the x-astro-path header and xastropath query parameter to rewrite the internal request path, with no authentication whatsoever. On deployments without Edge Middleware, this lets anyone bypass Vercel...

CVE-2026-33768 Astro: Unauthenticated Path Override via `x-astro-path` / `x_astro_path`

Astro is a web framework. Prior to version 10.0.2, the @astrojs/vercel serverless entrypoint reads the x-astro-path header and xastropath query parameter to rewrite the internal request path, with no authentication whatsoever. On deployments without Edge Middleware, this lets anyone bypass Vercel...

PT-2026-27487

Name of the Vulnerable Software and Affected Versions Astro versions prior to 10.0.2 Description Astro, a web framework, contains a flaw in the @astrojs/vercel serverless entrypoint. Versions prior to 10.0.2 do not authenticate requests using the x-astro-path header or x astro path query paramete...

RUSTSEC-2026-0040 `tracing-ethers` was removed from crates.io due to malicious code

The tracing-ethers crate attempted to exfiltrate ssh keys to an app hosted on vercel.app The malicious crate had 9 version published on 2026-03-09 approximately 5 days before removal and had no evidence of actual downloads. There were no crates depending on this crate on crates.io. Thanks to the...

`tracing-ethers` was removed from crates.io due to malicious code

The tracing-ethers crate attempted to exfiltrate ssh keys to an app hosted on vercel.app The malicious crate had 9 version published on 2026-03-09 approximately 5 days before removal and had no evidence of actual downloads. There were no crates depending on this crate on crates.io. Thanks to the...