{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-33894", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-03-24T15:41:47.489Z", "datePublished": "2026-03-27T20:45:49.583Z", "dateUpdated": "2026-03-27T20:45:49.583Z"}, "containers": {"cna": {"title": "Forge has signature forgery in RSA-PKCS due to ASN.1 extra field", "problemTypes": [{"descriptions": [{"cweId": "CWE-347", "lang": "en", "description": "CWE-347: Improper Verification of Cryptographic Signature", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-20", "lang": "en", "description": "CWE-20: Improper Input Validation", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/digitalbazaar/forge/security/advisories/GHSA-ppp5-5v6c-4jwp", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/digitalbazaar/forge/security/advisories/GHSA-ppp5-5v6c-4jwp"}, {"name": "https://github.com/digitalbazaar/forge/security/advisories/GHSA-ppp5-5v6c-4jwp", "tags": ["x_refsource_MISC"], "url": "https://github.com/digitalbazaar/forge/security/advisories/GHSA-ppp5-5v6c-4jwp"}, {"name": "https://datatracker.ietf.org/doc/html/rfc2313#section-8", "tags": ["x_refsource_MISC"], "url": "https://datatracker.ietf.org/doc/html/rfc2313#section-8"}, {"name": "https://mailarchive.ietf.org/arch/msg/openpgp/5rnE9ZRN1AokBVj3VqblGlP63QE", "tags": ["x_refsource_MISC"], "url": "https://mailarchive.ietf.org/arch/msg/openpgp/5rnE9ZRN1AokBVj3VqblGlP63QE"}, {"name": "https://www.rfc-editor.org/rfc/rfc8017.html", "tags": ["x_refsource_MISC"], "url": "https://www.rfc-editor.org/rfc/rfc8017.html"}], "affected": [{"vendor": "digitalbazaar", "product": "forge", "versions": [{"version": "< 1.4.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-03-27T20:45:49.583Z"}, "descriptions": [{"lang": "en", "value": "Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, RSASSA PKCS#1 v1.5 signature verification accepts forged signatures for low public exponent keys (e=3). Attackers can forge signatures by stuffing \u201cgarbage\u201d bytes within the ASN structure in order to construct a signature that passes verification, enabling Bleichenbacher style forgery. This issue is similar to CVE-2022-24771, but adds bytes in an addition field within the ASN structure, rather than outside of it. Additionally, forge does not validate that signatures include a minimum of 8 bytes of padding as defined by the specification, providing attackers additional space to construct Bleichenbacher forgeries. Version 1.4.0 patches the issue."}], "source": {"advisory": "GHSA-ppp5-5v6c-4jwp", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, RSASSA PKCS#1 v1.5 signature verification accepts forged signatures for low public exponent keys (e=3). Attackers can forge signatures by stuffing \u201cgarbage\u201d bytes within the ASN structure in order to construct a signature that passes verification, enabling Bleichenbacher style forgery. This issue is similar to CVE-2022-24771, but adds bytes in an addition field within the ASN structure, rather than outside of it. Additionally, forge does not validate that signatures include a minimum of 8 bytes of padding as defined by the specification, providing attackers additional space to construct Bleichenbacher forgeries. Version 1.4.0 patches the issue."}], "id": "CVE-2026-33894", "lastModified": "2026-03-27T21:17:25.983", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-03-27T21:17:25.983", "references": [{"source": "security-advisories@github.com", "url": "https://datatracker.ietf.org/doc/html/rfc2313#section-8"}, {"source": "security-advisories@github.com", "url": "https://github.com/digitalbazaar/forge/security/advisories/GHSA-ppp5-5v6c-4jwp"}, {"source": "security-advisories@github.com", "url": "https://github.com/digitalbazaar/forge/security/advisories/GHSA-ppp5-5v6c-4jwp"}, {"source": "security-advisories@github.com", "url": "https://mailarchive.ietf.org/arch/msg/openpgp/5rnE9ZRN1AokBVj3VqblGlP63QE"}, {"source": "security-advisories@github.com", "url": "https://www.rfc-editor.org/rfc/rfc8017.html"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}, {"lang": "en", "value": "CWE-347"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}