CVE-2026-55487

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

25/06/2026

Last modified:

29/06/2026

Description

pnpm is a package manager. Prior to 10.34.2 and 11.5.3, the generic peer-suffix normalizer also stripped parenthesized text from git, URL, tarball, file, and other opaque locators. Approval for one source string could therefore authorize a different attacker-controlled source whose locator normalized to the same value. This vulnerability is fixed in 10.34.2 and 11.5.3.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.50

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:pnpm:pnpm::::::node.js::*		10.34.2 (excluding)
cpe:2.3:a:pnpm:pnpm::::::node.js::*	11.0.0 (including)	11.5.3 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2026-55487

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools