{"cve":{"cve_id":"CVE-2026-55698","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":null,"epss_percentile":null,"epss_as_of":null,"description":"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_at":"2026-06-25T16:43:47.251000Z","last_modified_at":null,"cvss_v3_score":8.8,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cvss_v3_severity":"HIGH","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-345","CWE-494","CWE-829"],"nvd_references":["https://github.com/pnpm/pnpm/security/advisories/GHSA-w466-c33r-3gjp"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-28T17:55:37.240342Z","updated_at":"2026-06-28T23:30:55.940411Z"},"effective_severity":"HIGH","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"R","value_label":"Required"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"pnpm","vendor_name":"pnpm","product_slug":"pnpm","product_name":"pnpm","version_start":"< 10.34.2","version_start_inclusive":true,"version_end":"< 10.34.2","version_end_inclusive":true,"cpe23_uri":"cve5:pnpm:pnpm:< 10.34.2:< 10.34.2"},{"vendor_slug":"pnpm","vendor_name":"pnpm","product_slug":"pnpm","product_name":"pnpm","version_start":">= 11.0.0, < 11.5.3","version_start_inclusive":true,"version_end":">= 11.0.0, < 11.5.3","version_end_inclusive":true,"cpe23_uri":"cve5:pnpm:pnpm:>= 11.0.0, < 11.5.3:>= 11.0.0, < 11.5.3"}],"exploit_refs":[],"news":[],"references":[{"url":"https://github.com/pnpm/pnpm/security/advisories/GHSA-w466-c33r-3gjp","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2026-06-25T16:43:47.251000Z","label":"CVE published","source":null}]}