CVE-2026-45773 — Turborepo: Login callback CSRF/session fixation

Description (CNA)

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 (CNA)

Vendor / product	Versions
vercel / turborepo	affected < 2.9.14

CWE

CWE-352, CWE-384

References

https://github.com/vercel/turborepo/security/advisories/GHSA-hcf7-66rw-9f5r

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.