CVE-2026-50017Public exploitNetwork attack vector

Credential disclosure via unscoped registry rebinding

Published Jun 25, 2026 · Updated Jun 25, 2026

Credential exposure in pnpm before 10.34.0 and from 11.0.0 through versions before 11.4.0 allows remote attackers to obtain registry credentials. The merged auth configuration stores user-level unscoped credentials as defaults, then the auth-header flow maps those defaults to the effective registry selected by the repository. Exposure requires a developer or CI job with such credentials to run an install, view, or equivalent metadata command in an attacker-controlled repository; URL-scoped tokens remain bound to their registry.

CVSS severity6.9
Medium
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Credential exposure in pnpm before 10.34.0 and from 11.0.0 through versions before 11.4.0 allows remote attackers to obtain registry credentials. The merged auth configuration stores user-level unscoped credentials as defaults, then the auth-header flow maps those defaults to the effective registry selected by the repository. Exposure requires a developer or CI job with such credentials to run an install, view, or equivalent metadata command in an attacker-controlled repository; URL-scoped tokens remain bound to their registry.

The record

CVE
CVE-2026-50017
Published
Jun 25, 2026
Updated
Jun 25, 2026
Vendor
pnpm
Product
pnpm
Classifications
CWE-200, CWE-522, T1195.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=< 10.33.4
  2. Affected versionversion=>= 11.0.0, < 11.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

pnpm · pnpmversion=< 10.33.4; version=>= 11.0.0, < 11.4.0

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
6.9GitHub CNACVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
CWE-522Insufficiently Protected Credentials
T1195.001Compromise Software Dependencies and Development Tools

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo