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

> CVE-2026-45773: Turborepo: Login callback CSRF/session fixation. CVSS 6.5 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-45773
Last updated: 2026-06-17T10:52:32Z

- Published: 2026-05-15 15:51 UTC · Updated: 2026-06-17 10:52 UTC · Assigner: GitHub\_M
- CVSS: 6.5 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
- EPSS: 0.12%, 2th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-352, CWE-384

## 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 vendors and products

- vercel: turborepo

## Tracked companies

- [Vercel](https://rewindex.com/company/vercel.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-45773)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-45773)
- [https://github.com/vercel/turborepo/security/advisories/GHSA-hcf7-66rw-9f5r](https://github.com/vercel/turborepo/security/advisories/GHSA-hcf7-66rw-9f5r)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-45773 · Markdown: https://rewindex.com/cve/CVE-2026-45773.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-45773 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:09:26.324Z