Is CVE-2026-55180 in the CISA KEV catalog?

No. CVE-2026-55180 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-55180?

CVE-2026-55180 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2026-55180?

CVE-2026-55180 has an EPSS score of 0.21% (12th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-55180?

Upgrade pnpm to 10.34.2 or later.

CVE & CISA-KEV Catalog

CVE-2026-55180

MEDIUM

6.5

CVSS v3

NVD

Description

pnpm is a package manager. Prior to 10.34.2 and 11.5.3, pnpm and pacquet expanded ${ENV_VAR} placeholders from repository-controlled .npmrc and pnpm-workspace.yaml into registry request destinations and registry credentials. A malicious repository could cause dependency resolution to send victim environment secrets to an attacker-selected registry before lifecycle scripts run. This vulnerability is fixed in 10.34.2 and 11.5.3.

CWE-200Information Exposure CWE-201 CWE-522

How to fix

Remediation Available

pnpmWindows application

Affected:10.34.2Fixed in:10.34.2pnpm

Affected:11.0.0 11.5.3Fixed in:11.5.3pnpm

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.21%probability of exploitation in 30 days

12thpercentile

Low risk: more likely to be exploited than 12% of all known CVEs.

References

Exploit1

github.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-29.