{"cve":"CVE-2026-85393","nvd":{"published":"2026-09-03T19:17:31.103","modified":"2026-09-24T20:43:32.537","status":"Deferred","description":"node-forge through 1.4.0 fails to validate element count in nested DigestAlgorithm sequences during RSA PKCS#1 v1.5 signature verification. Attackers can embed garbage bytes inside the DigestAlgorithm sequence to forge valid signatures for arbitrary messages using low-exponent RSA keys. This is an incomplete fix for CVE-2026-33894.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","score":8.7},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","score":7.5},"cwes":["CWE-347"],"references":["https://github.com/advisories/GHSA-ppp5-5v6c-4jwp","https://github.com/digitalbazaar/forge","https://github.com/digitalbazaar/forge/blob/v1.4.0/lib/asn1.js","https://github.com/digitalbazaar/forge/blob/v1.4.0/lib/rsa.js","https://github.com/digitalbazaar/forge/issues/1149"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:52:03.409947763+00:00"},"epss":{"cve":"CVE-2026-85393","score":0.00248,"percentile":0.16151,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-86w9-cpqp-85rv","url":"https://osv.dev/vulnerability/GHSA-86w9-cpqp-85rv","summary":"node-forge RSA PKCS#1 v1.5 signature verification accepts extra nested DigestAlgorithm elements","modified":"2026-10-01T21:40:55.016251436Z","packages":[{"ecosystem":"npm","name":"node-forge","purl":"pkg:npm/node-forge","ranges":["<=1.4.0"],"fixed":[]}]},{"id":"GHSA-ppp5-5v6c-4jwp","url":"https://osv.dev/vulnerability/GHSA-ppp5-5v6c-4jwp","summary":"Forge has signature forgery in RSA-PKCS due to ASN.1 extra field  ","modified":"2026-10-01T21:40:55.016251436Z","packages":[{"ecosystem":"npm","name":"node-forge","purl":"pkg:npm/node-forge","ranges":["<1.4.0"],"fixed":["1.4.0"]}]}],"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."]}