Is CVE-2026-55487 actively exploited?

No active exploitation of CVE-2026-55487 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-55487 be exploited remotely?

Yes. CVE-2026-55487 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-55487?

CVE-2026-55487 has a CVSS score of 8.8 (HIGH).

HOME VULNERABILITIESCVE-2026-55487

HIGH

CVE-2026-55487

CWE-346Published: June 25, 2026· Updated: Jun 29, 2026

8.8

CVSS v3.1

EPSS:0.11%probability of exploitation in 30 daysPercentile:1.5th

Official 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.

NVD Source

Technical Analysis

CVE-2026-55487 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.