CVE-2026-78177Public exploit

Local command execution via package-name interpolation

Published Aug 24, 2026 · Updated Aug 24, 2026

OS command injection in TanStack @tanstack/devtools-vite 0.7.0 allows local users to execute commands through a devtools event. The installPackage function interpolates an unvalidated packageName from unauthenticated WebSocket or HTTP events into a package-manager command passed to child_process.exec(). The event bus binds to localhost by default, so exploitation requires local reachability unless a development server exposes the bus, and commands run with the Vite process's privileges.

CVSS severity4.5
Medium
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in TanStack @tanstack/devtools-vite 0.7.0 allows local users to execute commands through a devtools event. The installPackage function interpolates an unvalidated packageName from unauthenticated WebSocket or HTTP events into a package-manager command passed to child_process.exec(). The event bus binds to localhost by default, so exploitation requires local reachability unless a development server exposes the bus, and commands run with the Vite process's privileges.

The record

CVE
CVE-2026-78177
Published
Aug 24, 2026
Updated
Aug 24, 2026
Vendor
TanStack
Product
@tanstack/devtools-vite
Classifications
CWE-77, CWE-78, T1059
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 24, 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=0.7.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

TanStack · @tanstack/devtools-viteversion=0.7.0

Published CVSS scores

1.1VulDBCVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
3.5VulDBAV:L/AC:H/Au:S/C:P/I:P/A:P
4.5VulDBCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

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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