CVE-2026-45773

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

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

Configurations

Configuration 1 (hide)

cpe:2.3:a:vercel:turborepo:*:*:*:*:*:node.js:*:*

History

19 May 2026, 14:41

Type	Values Removed	Values Added
CPE		cpe:2.3:a:vercel:turborepo::::::node.js::*
First Time		Vercel turborepo Vercel
References	~~() https://github.com/vercel/turborepo/security/advisories/GHSA-hcf7-66rw-9f5r -~~	() https://github.com/vercel/turborepo/security/advisories/GHSA-hcf7-66rw-9f5r - Vendor Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.5

15 May 2026, 16:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-15 16:16

Updated : 2026-05-19 14:41

NVD link : CVE-2026-45773

Mitre link : CVE-2026-45773

CVE.ORG link : CVE-2026-45773

JSON object : View

Products Affected

vercel

turborepo

CWE

CWE-352

Cross-Site Request Forgery (CSRF)

CWE-384

Session Fixation

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