What’s Vulnerable › Vulnerabilities
CVE-2026-45773: Turborepo: Login callback CSRF/session fixation
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-05-15 · updated 2026-10-26
- Weakness: CWE-352
Description
Turborepo is a high-performance build system for JavaScript and TypeScript codebases. Prior to 2.9.14, Turborepo's self-hosted login and SSO browser flows did not validate a CSRF state value on the localhost callback. While the CLI was waiting for authentication, a malicious web page could send a request to the local callback server with an attacker-controlled token. If accepted before the legitimate callback, the CLI could complete login with the wrong credentials. This affects users authenticating the turbo CLI against self-hosted remote cache/auth endpoints. Vercel-hosted login flows using device authorization are not affected. This vulnerability is fixed in 2.9.14.
Affected products
- vercel turborepo: before 2.9.14 — fixed in 2.9.14
How to fix
Upgrade to a fixed version: vercel turborepo 2.9.14. Check the vendor advisory for mitigations.
References
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