# CVE-2026-78177: TanStack devtools-vite command injection in package manager

Source: https://junglewise.ai/threats/cve-2026-78177-tanstack-devtools-vite-command-injection-in-package-manager  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-24. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-78177 · Severity: medium · CVSS 4.5 · Published 2026-08-24

TanStack devtools-vite is a development tool used by developers during local application building and debugging. A command injection vulnerability in the package installation function allows a local attacker to execute arbitrary shell commands on the developer's machine, potentially compromising the development environment and any systems it can access.

Vendors: [TanStack](https://junglewise.ai/threats/vendors/tanstack).

## Quick answers

**Is CVE-2026-78177 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-78177 being exploited in the wild.

**How severe is CVE-2026-78177?** Medium severity, with a CVSS score of 4.5, published 24 August 2026.

**Which products and versions are affected?** TanStack Devtools-Vite 0.7.0.

**Is there a fix for CVE-2026-78177?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-78177 attacked?** It is attacked with local access, in a software library.

**Am I affected by CVE-2026-78177?** Check whether you run TanStack Devtools-Vite at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is an OS command injection flaw in the installPackage function of packages/devtools-bundler-core/src/package-manager.ts. The packageName argument is insufficiently sanitized, allowing attackers to inject shell commands that execute with the privileges of the local developer. The attack requires local access to the development environment and involves manipulation of devtools events. While exploitation is noted as difficult and requiring high complexity, a proof-of-concept has been publicly disclosed. Patches are not yet available as the project has not responded to the early disclosure notification.

## Affected products

- TanStack devtools-vite 0.7.0

## Timeline

- 2026-08-24: disclosed: Vulnerability published and proof-of-concept made public
- 2026-08-24: other: Project informed early through issue report but has not responded

## References

- [https://github.com/TanStack/devtools/issues/464](https://github.com/TanStack/devtools/issues/464)
- [https://vuldb.com/cve/CVE-2026-78177](https://vuldb.com/cve/CVE-2026-78177)