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CVE-2026-55700

pnpm is a package manager. From 11.3.0 until 11.5.3, `pnpm stage download` derived a local filename from registry-controlled package name and version fields. A crafted manifest could escape the selected download directory and overwrite another reachable file. The merged fix validates both fields, derives one safe filename, and verifies the final destination before writing. This vulnerability is fixed in 11.5.3.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:b481258f9c181ee25d23a02e03282c63a335bde540884b24c8d68f575f54dabb
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-22","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d5861282d43812de4af2fc7336c60a22f3ebf18efbac09447b8f4da9fd81750c · sha256:4f45b39e8263a1d6… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-73","description":"CWE-73: External Control of File Name or Path","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d5861282d43812de4af2fc7336c60a22f3ebf18efbac09447b8f4da9fd81750c · sha256:4f45b39e8263a1d6… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"product":"pnpm","vendor":"pnpm","versions":[{"status":"affected","version":">= 11.3.0, < 11.5.3"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d5861282d43812de4af2fc7336c60a22f3ebf18efbac09447b8f4da9fd81750c · sha256:4f45b39e8263a1d6… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":7.1,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:d5861282d43812de4af2fc7336c60a22f3ebf18efbac09447b8f4da9fd81750c · sha256:4f45b39e8263a1d6… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-22","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d5861282d43812de4af2fc7336c60a22f3ebf18efbac09447b8f4da9fd81750c · sha256:4f45b39e8263a1d6… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-73","description":"CWE-73: External Control of File Name or Path","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d5861282d43812de4af2fc7336c60a22f3ebf18efbac09447b8f4da9fd81750c · sha256:4f45b39e8263a1d6… · /containers/cna/problemTypes/1/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/pnpm/pnpm/pull/12303","tags":["x_refsource_MISC"],"url":"https://github.com/pnpm/pnpm/pull/12303"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d5861282d43812de4af2fc7336c60a22f3ebf18efbac09447b8f4da9fd81750c · sha256:4f45b39e8263a1d6… · /containers/cna/references/1
{"name":"https://github.com/pnpm/pnpm/security/advisories/GHSA-v23m-ccfg-pq9h","tags":["x_refsource_CONFIRM"],"url":"https://github.com/pnpm/pnpm/security/advisories/GHSA-v23m-ccfg-pq9h"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d5861282d43812de4af2fc7336c60a22f3ebf18efbac09447b8f4da9fd81750c · sha256:4f45b39e8263a1d6… · /containers/cna/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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