{"schema_version":1,"title":"Fast-Jwt vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 5 vulnerabilities in Fast-Jwt: 0 in the last 7 days and 5 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-107724, was published on 8 October 2026. Nothing in the last four weeks, down from 5 vulnerabilities in the four before. 0 critical against 1.","url":"https://junglewise.ai/threats/technologies/fast-jwt-fast-jwt","json_url":"https://junglewise.ai/threats/technologies/fast-jwt-fast-jwt.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/fast-jwt-fast-jwt","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","thin":false,"counts":{"high":2,"all_time":5,"critical":1,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":5,"last_365_days":5},"latest":[{"cve":"CVE-2026-107724","cvss":7.4,"epss":0.0022,"slug":"cve-2026-107724-fast-jwt-treats-raw-public-jwk-json-as-an-hmac-secret-enabling","title":"fast-jwt JWK JSON HMAC secret misclassification in HS256 verification","severity":"high","exploited":false,"published_at":"2026-10-08T22:17:28.8+00:00","url":"https://junglewise.ai/threats/cve-2026-107724-fast-jwt-treats-raw-public-jwk-json-as-an-hmac-secret-enabling"},{"cve":"CVE-2026-107723","cvss":8.1,"epss":0.0036,"slug":"cve-2026-107723-fast-jwt-silent-claim-validator-bypass-when-jwt-payload-is-a","title":"fast-jwt claim-validator bypass with JSON array payload","severity":"high","exploited":false,"published_at":"2026-10-08T22:17:28.623+00:00","url":"https://junglewise.ai/threats/cve-2026-107723-fast-jwt-silent-claim-validator-bypass-when-jwt-payload-is-a"},{"cve":"CVE-2026-107722","cvss":9.8,"epss":0.0027,"slug":"cve-2026-107722-fast-jwt-incomplete-patch-of-non-whitespace-key-prefix-re","title":"fast-jwt incomplete RSA-to-HS256 algorithm confusion fix","severity":"critical","exploited":false,"published_at":"2026-10-08T22:17:28.447+00:00","url":"https://junglewise.ai/threats/cve-2026-107722-fast-jwt-incomplete-patch-of-non-whitespace-key-prefix-re"},{"cve":"CVE-2026-107721","cvss":5.9,"epss":0.0033,"slug":"cve-2026-107721-fast-jwt-clocktolerance-infinity-silently-bypasses-both-exp-and","title":"fast-jwt clockTolerance validation bypass in expiry and not-before checks","severity":"medium","exploited":false,"published_at":"2026-10-08T22:17:28.263+00:00","url":"https://junglewise.ai/threats/cve-2026-107721-fast-jwt-clocktolerance-infinity-silently-bypasses-both-exp-and"},{"cve":"CVE-2026-107719","cvss":4.2,"epss":0.0023,"slug":"cve-2026-107719-fast-jwt-verifier-cache-accepts-expired-jwts-without-iat","title":"fast-jwt expiration bypass in token caching","severity":"medium","exploited":false,"published_at":"2026-10-08T22:17:27.913+00:00","url":"https://junglewise.ai/threats/cve-2026-107719-fast-jwt-verifier-cache-accepts-expired-jwts-without-iat"}],"weekly":[{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-28","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-05","critical":1,"exploited":0,"vulnerabilities":5},{"week":"2026-10-12","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-19","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-26","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-11-02","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-11-09","critical":0,"exploited":0,"vulnerabilities":0}],"related":[],"technology":{"hub":true,"name":"Fast-Jwt","slug":"fast-jwt-fast-jwt","vendor":{"hub":true,"name":"Fast-Jwt","slug":"fast-jwt","url":"https://junglewise.ai/threats/vendors/fast-jwt"},"aliases":[],"category":"library","homepage":"https://github.com/nearform/fast-jwt","repo_url":"https://github.com/nearform/fast-jwt","description":"JavaScript library for signing and verifying JSON Web Tokens.","url":"https://junglewise.ai/threats/technologies/fast-jwt-fast-jwt"},"most_severe":[{"cve":"CVE-2026-107722","cvss":9.8,"epss":0.0027,"slug":"cve-2026-107722-fast-jwt-incomplete-patch-of-non-whitespace-key-prefix-re","title":"fast-jwt incomplete RSA-to-HS256 algorithm confusion fix","severity":"critical","exploited":false,"published_at":"2026-10-08T22:17:28.447+00:00","url":"https://junglewise.ai/threats/cve-2026-107722-fast-jwt-incomplete-patch-of-non-whitespace-key-prefix-re"},{"cve":"CVE-2026-107723","cvss":8.1,"epss":0.0036,"slug":"cve-2026-107723-fast-jwt-silent-claim-validator-bypass-when-jwt-payload-is-a","title":"fast-jwt claim-validator bypass with JSON array payload","severity":"high","exploited":false,"published_at":"2026-10-08T22:17:28.623+00:00","url":"https://junglewise.ai/threats/cve-2026-107723-fast-jwt-silent-claim-validator-bypass-when-jwt-payload-is-a"},{"cve":"CVE-2026-107724","cvss":7.4,"epss":0.0022,"slug":"cve-2026-107724-fast-jwt-treats-raw-public-jwk-json-as-an-hmac-secret-enabling","title":"fast-jwt JWK JSON HMAC secret misclassification in HS256 verification","severity":"high","exploited":false,"published_at":"2026-10-08T22:17:28.8+00:00","url":"https://junglewise.ai/threats/cve-2026-107724-fast-jwt-treats-raw-public-jwk-json-as-an-hmac-secret-enabling"},{"cve":"CVE-2026-107721","cvss":5.9,"epss":0.0033,"slug":"cve-2026-107721-fast-jwt-clocktolerance-infinity-silently-bypasses-both-exp-and","title":"fast-jwt clockTolerance validation bypass in expiry and not-before checks","severity":"medium","exploited":false,"published_at":"2026-10-08T22:17:28.263+00:00","url":"https://junglewise.ai/threats/cve-2026-107721-fast-jwt-clocktolerance-infinity-silently-bypasses-both-exp-and"},{"cve":"CVE-2026-107719","cvss":4.2,"epss":0.0023,"slug":"cve-2026-107719-fast-jwt-verifier-cache-accepts-expired-jwts-without-iat","title":"fast-jwt expiration bypass in token caching","severity":"medium","exploited":false,"published_at":"2026-10-08T22:17:27.913+00:00","url":"https://junglewise.ai/threats/cve-2026-107719-fast-jwt-verifier-cache-accepts-expired-jwts-without-iat"}],"generated_at":"2026-11-09T03:07:00.176479+00:00"}