CVE-2026-45773
published 2026-05-15CVE-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…
PriorityP335medium6.5CVSS 3.1
AVNACLPRNUIRSUCNIHAN
EPSS
0.12%
2.5th percentile
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
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| vercel | turborepo | < 2.9.14 | 2.9.14 |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
nvdv4.05.1MEDIUMCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:L/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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GHSA
Trubo: Login callback CSRF/session fixation
ghsa·2026-05-19
CVE-2026-45773 [MEDIUM] CWE-352 Trubo: Login callback CSRF/session fixation
Trubo: Login callback CSRF/session fixation
### Impact
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.
### Fix
The login and SSO redirect flows now generate a random state value, include it in the browser authentication URL, and require the same value on the localhost callback before accepting a token. C
VulDB
vercel turborepo up to 2.9.13 cross-site request forgery
vuldb·2026-05-15·CVSS 5.1
CVE-2026-45773 [MEDIUM] vercel turborepo up to 2.9.13 cross-site request forgery
A vulnerability labeled as problematic has been found in vercel turborepo up to 2.9.13. This issue affects some unknown processing. Executing a manipulation can lead to cross-site request forgery.
This vulnerability is tracked as CVE-2026-45773. The attack can be launched remotely. No exploit exists.
The affected component should be upgraded.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-05-15
Published