---
title: "CVE-2026-101043: pnpm - Information Disclosure"
description: "pnpm versions 11.0.0 before 11.11.0 and 10.7.0 before 10.34.5 contain an information disclosure caused by expansion of environment-variable placeholders in proxy settings from pnpm-workspace.yaml, letting attackers controlling the repository exfiltrate environment secrets via DNS lookups, exploit requires attacker control of repository manifest."
url: https://panop.io/threat-heartbeat/CVE-2026-101043/
---

# CVE-2026-101043 pnpm - Information Disclosure

pnpm versions 11.0.0 before 11.11.0 and 10.7.0 before 10.34.5 contain an information disclosure caused by expansion of environment-variable placeholders in proxy settings from pnpm-workspace.yaml, letting attackers controlling the repository exfiltrate environment secrets via DNS lookups, exploit requires attacker control of repository manifest.

CVSS base score 7.4 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.22% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-101043)

## Details

Type

Information Disclosure

Impact

Information Disclosure

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

Published

27 September 2026

Updated

15 October 2026

Weakness

[CWE-201](https://cwe.mitre.org/data/definitions/201.html)

## Vendor fix

Update to versions 11.11.0 or 10.34.5 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-101043](https://nvd.nist.gov/vuln/detail/CVE-2026-101043)
- [https://www.vulncheck.com/advisories/pnpm-11.0.0-before-11.11.0-environment-variable-exfiltration-via-proxy-settings](https://www.vulncheck.com/advisories/pnpm-11.0.0-before-11.11.0-environment-variable-exfiltration-via-proxy-settings)
- [https://github.com/pnpm/pnpm/security/advisories/GHSA-vx52-2968-3vc6](https://github.com/pnpm/pnpm/security/advisories/GHSA-vx52-2968-3vc6)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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