{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/41063?format=json","vulnerability_id":"VCID-mtzj-rqrc-syas","summary":"Signature Verification Bypass in jwt-simple\nVersions of `jwt-simple` prior to 0.5.3 are vulnerable to Signature Verification Bypass. If no algorithm is specified in the `decode()` function, the packages uses the algorithm in the JWT to decode tokens. This allows an attacker to create a HS256 (symmetric algorithm) JWT with the server's public key as secret, and the package will verify it as HS256 instead of RS256 (asymmetric algorithm).\n\n\n## Recommendation\n\nUpgrade to version 0.5.3 or later.","aliases":[{"alias":"GHSA-8v5f-hp78-jgxq"},{"alias":"GMS-2019-129"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/58179?format=json","purl":"pkg:npm/jwt-simple@0.5.3","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/jwt-simple@0.5.3"}],"affected_packages":[],"references":[{"reference_url":"https://github.com/hokaccha/node-jwt-simple/commit/ead36e1d687645da9c3be8befdaaef622ea33106","reference_id":"","reference_type":"","scores":[],"url":"https://github.com/hokaccha/node-jwt-simple/commit/ead36e1d687645da9c3be8befdaaef622ea33106"},{"reference_url":"https://www.npmjs.com/advisories/831","reference_id":"","reference_type":"","scores":[],"url":"https://www.npmjs.com/advisories/831"},{"reference_url":"https://github.com/advisories/GHSA-8v5f-hp78-jgxq","reference_id":"GHSA-8v5f-hp78-jgxq","reference_type":"","scores":[],"url":"https://github.com/advisories/GHSA-8v5f-hp78-jgxq"}],"weaknesses":[{"cwe_id":1035,"name":"OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities","description":"Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2017."},{"cwe_id":937,"name":"OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities","description":"Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2013."}],"exploits":[],"severity_range_score":null,"exploitability":null,"weighted_severity":null,"risk_score":null,"resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-mtzj-rqrc-syas"}