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    Dashboard / CVE / CVE-2026-55698

    CVE-2026-55698

    pnpm is a package manager. Prior to 10.34.2 and 11.5.3, pnpm can persist package-manager bootstrap metadata in the first YAML document of pnpm-lock.yaml. Before the patch, direct pnpm execution trusted an already resolved packageManagerDependencies entry when the committed env lockfile contained matching pnpm and @pnpm/exe versions. A malicious repository could therefore commit package-manager lockfile package records and snapshots that bypassed fresh package-manager resolution, then cause pnpm to install and execute bytes selected by that committed lockfile state during automatic version switching. This vulnerability is fixed in 10.34.2 and 11.5.3.

    Published:Jun 25, 2026
    Last Modified:Jun 26, 2026
    EPS:Jun 25, 2026
    EPSS Score:0.00193
    CVSS Score:8.8

    Affected Products

    Vendor
    Pnpm
    Product
    Pnpm

    Exploits

    https://github.com/pnpm/pnpm/security/advisories/GHSA-w466-c33r-3gjphttps://github.com/pnpm/pnpm/security/advisories/GHSA-w466-c33r-3gjp

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-111 JSON Hijacking (aka JavaScript Hijacking)
    CAPEC-141 Cache Poisoning
    CAPEC-142 DNS Cache Poisoning
    CAPEC-148 Content Spoofing
    CAPEC-175 Code Inclusion
    CAPEC-184 Software Integrity Attack
    CAPEC-185 Malicious Software Download
    CAPEC-186 Malicious Software Update
    CAPEC-187 Malicious Automated Software Update via Redirection
    CAPEC-201 Serialized Data External Linking
    CAPEC-218 Spoofing of UDDI/ebXML Messages
    CAPEC-228 DTD Injection
    CAPEC-251 Local Code Inclusion
    CAPEC-252 PHP Local File Inclusion
    CAPEC-253 Remote Code Inclusion
    CAPEC-263 Force Use of Corrupted Files
    CAPEC-384 Application API Message Manipulation via Man-in-the-Middle
    CAPEC-385 Transaction or Event Tampering via Application API Manipulation
    CAPEC-386 Application API Navigation Remapping
    CAPEC-387 Navigation Remapping To Propagate Malicious Content
    CAPEC-388 Application API Button Hijacking
    CAPEC-533 Malicious Manual Software Update
    CAPEC-538 Open-Source Library Manipulation
    CAPEC-549 Local Execution of Code
    CAPEC-586 Object Injection
    CAPEC-640 Inclusion of Code in Existing Process
    CAPEC-657 Malicious Automated Software Update via Spoofing
    CAPEC-660 Root/Jailbreak Detection Evasion via Hooking
    CAPEC-662 Adversary in the Browser (AiTB)
    CAPEC-665 Exploitation of Thunderbolt Protection Flaws
    CAPEC-691 Spoof Open-Source Software Metadata
    CAPEC-692 Spoof Version Control System Commit Metadata
    CAPEC-693 StarJacking
    CAPEC-695 Repo Jacking
    CAPEC-698 Install Malicious Extension
    CAPEC-701 Browser in the Middle (BiTM)

    Related CVEs

    CVE-2026-82393 (CVSS 7.5) — pnpm is a package manager. Prior to 10.34.5 and 11.11.0, pnpm accepts a scoped path traversal in a tarball dep…
    CVE-2026-82392 (CVSS 7.1) — pnpm is a package manager. Prior to 10.34.5 and from 11.0.0 until 11.11.0, pnpm parses the package name from a…
    CVE-2026-59195 (CVSS 8.2) — pnpm is a package manager. Prior to 10.34.4 and 11.8.0, pnpm accepts package names from the env lockfile confi…
    CVE-2026-59196 (CVSS 7.1) — pnpm is a package manager. Prior to 10.34.4 and 11.7.0, a crafted lockfile alias could be joined directly unde…
    CVE-2026-59194 (CVSS 7.1) — pnpm is a package manager. Prior to 10.34.4 and 11.7.0, a crafted patch entry could resolve outside the config…
    CVE-2026-55180 (CVSS 6.5) — pnpm is a package manager. Prior to 10.34.2 and 11.5.3, pnpm and pacquet expanded ${ENV_VAR} placeholders from…
    CVE-2026-48995 (CVSS 4.8) — pnpm is a package manager. Prior to 10.33.4 and 11.0.7, a malicious codeload.github.com server can serve whate…
    CVE-2026-50017 (CVSS 6.9) — pnpm is a package manager. Prior to 10.34.0 and 11.4.0, pnpm can send user-level unscoped npm authentication c…
    CVE-2026-50016 (CVSS 8.8) — pnpm is a package manager. Prior to 10.34.0 and 11.4.0, pnpm allows a transitive dependency alias from registr…
    CVE-2026-50015 (CVSS 7.3) — pnpm is a package manager. Prior to 10.34.0 and 11.4.0, pnpm's patch application pipeline (@pnpm/patch-package…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High