{"cve":"CVE-2016-3956","nvd":{"published":"2016-07-02T14:59:19.417","modified":"2026-06-17T00:46:38.163","status":"Modified","description":"The CLI in npm before 2.15.1 and 3.x before 3.8.3, as used in Node.js 0.10 before 0.10.44, 0.12 before 0.12.13, 4 before 4.4.2, and 5 before 5.10.0, includes bearer tokens with arbitrary requests, which allows remote HTTP servers to obtain sensitive information by reading Authorization headers.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5},"cwes":["CWE-200"],"references":["http://blog.npmjs.org/post/142036323955/fixing-a-bearer-token-vulnerability","http://www-01.ibm.com/support/docview.wss?uid=swg21980827","https://github.com/npm/npm/commit/f67ecad59e99a03e5aad8e93cd1a086ae087cb29","https://github.com/npm/npm/commit/fea8cc92cee02c720b58f95f14d315507ccad401","https://github.com/npm/npm/issues/8380"],"products":["ibm:sdk","nodejs:node.js","npmjs:npm"],"source":"nvd","synced_at":"2026-10-19T20:38:51.654415212+00:00"},"epss":{"cve":"CVE-2016-3956","score":0.05456,"percentile":0.92739,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-m5h6-hr3q-22h5","url":"https://osv.dev/vulnerability/GHSA-m5h6-hr3q-22h5","summary":"npm Token Leak in npm","modified":"2026-09-10T03:47:01.644240263Z","packages":[{"ecosystem":"npm","name":"npm","purl":"pkg:npm/npm","ranges":["<2.15.1"],"fixed":["2.15.1"]},{"ecosystem":"npm","name":"npm","purl":"pkg:npm/npm","ranges":[">=3.0.0 <3.8.3"],"fixed":["3.8.3"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}