---
cve: "CVE-2026-45773"
severity: "MEDIUM"
cvss: 5.1
epss: "0.1%"
vendor: "vercel"
kev: false
exploited: false
published: "2026-05-15 15:51:38"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-21T14:47:15+02:00"
---

# CVE-2026-45773

> 5.1 MEDIUM · 🧪 PoC

## Beschreibung

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-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:L/SI:H/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |

## Patch verfügbar (OSV)

- fc62fe0d9c347d1d24f0ed8946284856593ddb93 (Commit)

## Referenzen

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

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-45773) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_