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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
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:7d05d8c92230e8335da0f7b00d3678a6f534198e38e4aa0b22ef80e82eeb378b
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 3 assertions

{"cweId":"CWE-345","description":"CWE-345: Insufficient Verification of Data Authenticity","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:29c689ff93848fc5fc3a663dfa106e084413a593ae1a953a7856d99c72d28808 · sha256:1c089baeab6ccedf… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-829","description":"CWE-829: Inclusion of Functionality from Untrusted Control Sphere","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:29c689ff93848fc5fc3a663dfa106e084413a593ae1a953a7856d99c72d28808 · sha256:1c089baeab6ccedf… · /containers/cna/problemTypes/2/descriptions/0

{"cweId":"CWE-494","description":"CWE-494: Download of Code Without Integrity Check","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:29c689ff93848fc5fc3a663dfa106e084413a593ae1a953a7856d99c72d28808 · sha256:1c089baeab6ccedf… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"product":"pnpm","vendor":"pnpm","versions":[{"status":"affected","version":"< 10.34.2"},{"status":"affected","version":">= 11.0.0, < 11.5.3"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:29c689ff93848fc5fc3a663dfa106e084413a593ae1a953a7856d99c72d28808 · sha256:1c089baeab6ccedf… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:29c689ff93848fc5fc3a663dfa106e084413a593ae1a953a7856d99c72d28808 · sha256:1c089baeab6ccedf… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

3 source assertions
{"cweId":"CWE-345","description":"CWE-345: Insufficient Verification of Data Authenticity","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:29c689ff93848fc5fc3a663dfa106e084413a593ae1a953a7856d99c72d28808 · sha256:1c089baeab6ccedf… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-829","description":"CWE-829: Inclusion of Functionality from Untrusted Control Sphere","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:29c689ff93848fc5fc3a663dfa106e084413a593ae1a953a7856d99c72d28808 · sha256:1c089baeab6ccedf… · /containers/cna/problemTypes/2/descriptions/0
{"cweId":"CWE-494","description":"CWE-494: Download of Code Without Integrity Check","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:29c689ff93848fc5fc3a663dfa106e084413a593ae1a953a7856d99c72d28808 · sha256:1c089baeab6ccedf… · /containers/cna/problemTypes/1/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/pnpm/pnpm/security/advisories/GHSA-w466-c33r-3gjp","tags":["x_refsource_CONFIRM"],"url":"https://github.com/pnpm/pnpm/security/advisories/GHSA-w466-c33r-3gjp"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:29c689ff93848fc5fc3a663dfa106e084413a593ae1a953a7856d99c72d28808 · sha256:1c089baeab6ccedf… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/pnpm/pnpm/security/advisories/GHSA-w466-c33r-3gjp"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:29c689ff93848fc5fc3a663dfa106e084413a593ae1a953a7856d99c72d28808 · sha256:1c089baeab6ccedf… · /containers/adp/0/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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