{"schema":"threatline.record/2","record":{"id":"CVE-2026-85393","aliases":["CVE-2026-33894","GHSA-86w9-cpqp-85rv","GHSA-ppp5-5v6c-4jwp"],"summary":"node-forge RSA PKCS#1 v1.5 signature verification accepts extra nested DigestAlgorithm elements","details":"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.","categories":["Libraries & packages"],"product":"node-forge","vendor":"digitalbazaar","ecosystem":"npm","affected_ranges":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-86w9-cpqp-85rv","source_modified_at":"2026-10-01T21:09:10Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"node-forge"},"range":"<= 1.4.0"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-85393","source_modified_at":"2026-09-03T19:14:06.547Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"forge","vendor":"digitalbazaar","versions":[{"version":"0","lessThanOrEqual":"1.4.0","status":"affected","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-86w9-cpqp-85rv","source_modified_at":"2026-10-01T21:40:55.016251436Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"node-forge","purl":"pkg:npm/node-forge"},"ranges":[{"events":[{"introduced":"0"},{"last_affected":"1.4.0"}],"type":"SEMVER"}],"versions":[]}],"fixed_versions":[],"cvss":8.7,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00326,"percentile":0.24484,"score_date":"2026-10-23"},"published_at":"2026-09-03T18:54:25.878Z","modified_at":"2026-10-01T21:40:55.016251436Z","provenance":[{"source":"GitHub Advisory Database","url":"https://github.com/advisories/GHSA-86w9-cpqp-85rv","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-01T21:09:10Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-85393","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-09-03T19:14:06.547Z"},{"source":"OSV","url":"https://osv.dev/vulnerability/GHSA-86w9-cpqp-85rv","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-01T21:40:55.016251436Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-85393","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["GitHub Advisory Database","CVE List","OSV","EPSS"],"references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-85393","source":"GitHub Advisory Database"},{"source":"CVE List","url":"https://github.com/digitalbazaar/forge/issues/1149","tags":["issue-tracking"]},{"source":"CVE List","url":"https://github.com/advisories/GHSA-ppp5-5v6c-4jwp","tags":["exploit"]},{"source":"CVE List","url":"https://github.com/digitalbazaar/forge/blob/v1.4.0/lib/asn1.js","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/digitalbazaar/forge/blob/v1.4.0/lib/rsa.js","tags":["technical-description"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/node-forge-through-1.4.0-rsa-pkcs-1-1.5-signature-forgery-via-nested-digestalgorithm-padding","tags":["third-party-advisory"]},{"url":"https://github.com/digitalbazaar/forge/pull/1152","source":"GitHub Advisory Database"},{"url":"https://github.com/advisories/GHSA-86w9-cpqp-85rv","source":"GitHub Advisory Database"},{"source":"CVE List","url":"https://github.com/digitalbazaar/forge","tags":["product"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","ssvc":{"exploitation":"poc","automatable":"yes","technical_impact":"partial","assessed_at":"2026-09-03T19:13:49.956810Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"ecosystem","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-01T21:40:55.016251436Z","content_hash":"7a8f2f86ceaf36fbf9073fafebbc33f4791df769a12239ac6ee918b448b0446e"}}