{"id":"CVE-2024-31033","aliases":["EUVD-2024-1291","GHSA-r65j-6h5f-4f92"],"status":"disputed","title":"Withdrawn: JJWT improperly generates signing keys","description":"JJWT (aka Java JWT) through 0.12.5 ignores certain characters and thus a user might falsely conclude that they have a strong key. The impacted code is the setSigningKey() method within the DefaultJwtParser class and the signWith() method within the DefaultJwtBuilder class. NOTE: the vendor disputes this because the \"ignores\" behavior cannot occur (in any version) unless there is a user error in how JJWT is used, and because the version that was actually tested must have been more than six years out of date.","severity":{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-10","score":0.00776,"percentile":0.56116,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-327"],"published":"2024-04-01T00:00:00Z","modified":"2026-10-28T02:31:02Z","products":[{"vendor":"jwtk","product":"jjwt"}],"references":[{"url":"https://github.com/jwtk/jjwt","tags":["x_transferred","package"]},{"url":"https://www.viralpatel.net/java-create-validate-jwt-token/","tags":["x_transferred","web"]},{"url":"https://github.com/2308652512/JJWT_BUG","tags":["x_transferred","package","web"]},{"url":"https://github.com/jwtk/jjwt/issues/930#issuecomment-2032699358","tags":["x_transferred","report","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-31033","tags":["advisory"]},{"url":"https://www.viralpatel.net/java-create-validate-jwt-token","tags":["web"]},{"url":"https://github.com/jwtk/jjwt/blob/26948610fbef81eba867cbaad54b516d1874c70a/impl/src/main/java/io/jsonwebtoken/impl/DefaultJwtParserBuilder.java#L242","tags":["web"]},{"url":"https://github.com/advisories/GHSA-r65j-6h5f-4f92"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/31xxx/CVE-2024-31033.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2024-31033","description":"JJWT (aka Java JWT) through 0.12.5 ignores certain characters and thus a user might falsely conclude that they have a strong key. The impacted code is the setSigningKey() method within the DefaultJwtParser class and the signWith() method within the DefaultJwtBuilder class. NOTE: the vendor disputes this because the \"ignores\" behavior cannot occur (in any version) unless there is a user error in how JJWT is used, and because the version that was actually tested must have been more than six years out of date.","status":"disputed","published":"2024-04-01T00:00:00Z","modified":"2024-08-27T17:59:14.397Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"medium","assessor":"adp"}],"updated_at":"2026-11-02T14:34:14.308905Z"}],"euvd":[{"id":"EUVD-2024-1291","description":"JJWT (aka Java JWT) through 0.12.5 ignores certain characters and thus a user might falsely conclude that they have a strong key. The impacted code is the setSigningKey() method within the DefaultJwtParser class and the signWith() method within the DefaultJwtBuilder class. NOTE: the vendor disputes this because the \"ignores\" behavior cannot occur (in any version) unless there is a user error in how JJWT is used, and because the version that was actually tested must have been more than six years out of date.","status":"published","published":"2024-04-01T00:00:00Z","modified":"2024-08-27T17:59:14Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"medium"}],"updated_at":"2026-11-03T00:56:10.428773Z"}],"ghsa":[{"id":"GHSA-r65j-6h5f-4f92","title":"Withdrawn: JJWT improperly generates signing keys","description":"## Withdrawn Advisory\n\nThis advisory has been withdrawn because it has been found to be disputed. Please see the issue [here](https://github.com/jwtk/jjwt/issues/930#issuecomment-2032699358) for more information.\n\n## Original Description\n\nJJWT (aka Java JWT) through 0.12.5 ignores certain characters and thus a user might falsely conclude that they have a strong key. The impacted code is the setSigningKey() method within the DefaultJwtParser class and the signWith() method within the DefaultJwtBuilder class.","status":"withdrawn","published":"2024-04-01T03:30:38Z","modified":"2024-04-03T14:53:00Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"medium"}],"cwes":["CWE-327"],"updated_at":"2026-11-02T14:37:42.744468Z"}],"nvd":[{"id":"CVE-2024-31033","description":"JJWT (aka Java JWT) through 0.12.5 ignores certain characters and thus a user might falsely conclude that they have a strong key. The impacted code is the setSigningKey() method within the DefaultJwtParser class and the signWith() method within the DefaultJwtBuilder class. NOTE: the vendor disputes this because the \"ignores\" behavior cannot occur (in any version) unless there is a user error in how JJWT is used, and because the version that was actually tested must have been more than six years out of date.","status":"disputed","published":"2024-04-01T02:15:07.85Z","modified":"2026-06-17T07:27:42.343Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"medium","assessor":"secondary"}],"updated_at":"2026-11-02T14:09:46.373977Z"}],"osv":[{"id":"CVE-2024-31033","description":"JJWT (aka Java JWT) through 0.12.5 ignores certain characters and thus a user might falsely conclude that they have a strong key. The impacted code is the setSigningKey() method within the DefaultJwtParser class and the signWith() method within the DefaultJwtBuilder class. NOTE: the vendor disputes this because the \"ignores\" behavior cannot occur (in any version) unless there is a user error in how JJWT is used, and because the version that was actually tested must have been more than six years out of date.","status":"published","published":"2024-04-01T00:00:00Z","modified":"2026-10-28T02:31:02.690336614Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:40.06138Z"},{"id":"GHSA-r65j-6h5f-4f92","title":"Withdrawn: JJWT improperly generates signing keys","description":"## Withdrawn Advisory\n\nThis advisory has been withdrawn because it has been found to be disputed. Please see the issue [here](https://github.com/jwtk/jjwt/issues/930#issuecomment-2032699358) for more information.\n\n## Original Description\n\nJJWT (aka Java JWT) through 0.12.5 ignores certain characters and thus a user might falsely conclude that they have a strong key. The impacted code is the setSigningKey() method within the DefaultJwtParser class and the signWith() method within the DefaultJwtBuilder class.","status":"withdrawn","published":"2024-04-01T03:30:38Z","modified":"2026-09-10T03:50:11.552248219Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"medium"}],"cwes":["CWE-327"],"updated_at":"2026-11-02T15:46:55.480549Z"}]}}