EUVD-2026-30551Published

Turborepo: Unexpected local code execution during Yarn Berry detection

Collected exploitation and prediction evidence

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

cve-program · CVE-2026-45772

Published

Turborepo is a high-performance build system for JavaScript and TypeScript codebases. From 1.1.0 to before 2.9.14, Turborepo can be vulnerable to arbitrary code execution when run in untrusted repositories that contain malicious Yarn configuration. In affected versions, package manager detection executed yarn --version from the project directory, which could cause Yarn to load and execute a project-controlled yarnPath from .yarnrc.yml. An attacker who controls repository contents could cause code execution when a user or CI system runs affected turbo, @turbo/codemod, or @turbo/workspace conversion commands. This vulnerability is fixed in 2.9.14.

Source published: 15 May 2026 15:45:45 UTC
Source modified: 15 May 2026 17:54:06 UTC
Observed here: 23 Oct 2026 15:48:27 UTC
Source terms: CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 4.0 · 0.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N

euvd · EUVD-2026-30551

Published

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: May 15, 2026, 3:45:45 PM

dateUpdated: May 15, 2026, 5:54:06 PM

Source published: May 15, 2026, 3:45:45 PM (timezone not stated)
Source modified: May 15, 2026, 5:54:06 PM (timezone not stated)
Observed here: 28 Oct 2026 06:13:02 UTC
Source terms: ENISA EUVD · source terms and attribution apply

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This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.

nvd · CVE-2026-45772

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Analyzed

Weakness classifications: CWE-426

Original publisher date fields

published: 2026-05-15T16:16:14.987

lastModified: 2026-10-26T14:10:00.130

1 source CPE criteria · context only

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

The original JSON retains the logical configuration operators, exclusions and version bounds.

Source published: 15 May 2026 16:16:14 UTC
Source modified: 26 Oct 2026 14:10:00 UTC
Observed here: 27 Oct 2026 13:11:36 UTC
Source terms: NIST NVD usage terms; underlying source attribution retained

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 4.0 · [email protected] · Secondary · 0.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/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

CVSS 3.1 · [email protected] · Primary · 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

osv · GHSA-3qcw-2rhx-2726

Published

### Impact Turborepo can be vulnerable to arbitrary code execution when run in untrusted repositories that contain malicious Yarn configuration. In affected versions, package manager detection executed `yarn --version` from the project directory, which could cause Yarn to load and execute a project-controlled `yarnPath` from `.yarnrc.yml`. An attacker who controls repository contents could cause code execution when a user or CI system runs affected `turbo`, `@turbo/codemod`, or `@turbo/workspace` conversion commands. ### Fix Turbo now avoids executing project-local Yarn during package manager detection. Yarn versions and paths are inferred from metadata such as `package.json`, parsing the value of `yarnPath` in `.yarnrc.yml` rather than executing it, and `yarn.lock`, and unrecognized Yarn lockfile formats are rejected instead of falling back to executing `yarn`. ### Workarounds If you cannot upgrade immediately, do not run Turborepo commands in untrusted repositories. Review or remove `.yarnrc.yml` files that define `yarnPath` before running Turborepo, especially in CI or automated tooling that processes external projects.

Source published: 19 May 2026 19:46:44 UTC
Source modified: 10 Sep 2026 03:51:04 UTC
Observed here: 24 Oct 2026 13:17:17 UTC
Source terms: GitHub Advisory Database · CC-BY-4.0

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS_V4 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N

Publisher rating · LOW