CVE-2026-46508

Arbitrary command execution via shell interpolation

Published May 15, 2026 · Updated May 15, 2026

Command injection in Vercel Turborepo's VS Code extension before 2.9.14000 allows attackers to run shell commands via a malicious workspace. The extension interpolates workspace settings or repository task names into string-based daemon and task commands that the user's shell interprets. Opening the workspace can activate the extension, while task-name exploitation requires a user to run a task; commands inherit the local VS Code process privileges.

CVSS severity8.4
High
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Vercel Turborepo's VS Code extension before 2.9.14000 allows attackers to run shell commands via a malicious workspace. The extension interpolates workspace settings or repository task names into string-based daemon and task commands that the user's shell interprets. Opening the workspace can activate the extension, while task-name exploitation requires a user to run a task; commands inherit the local VS Code process privileges.

The record

CVE
CVE-2026-46508
Published
May 15, 2026
Updated
May 15, 2026
Vendor
Vercel
Product
Turborepo
Classifications
CWE-77, T1059, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 15, 2026CVE publishedPublication date reported by the CVE source.
  2. May 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2.9.14000

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Vercel · Turborepoversion=< 2.9.14000

Published CVSS scores

8.4GitHub, Inc.CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.8National Institute of Standards and TechnologyCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059Command and Scripting Interpreter
T1204.002Malicious File

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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