{"id":"CVE-2026-75431","title":"PowerJob Server version 5.1.2 (and likely earlier) uses a predictable JWT signing key for HS256-based authentication","summary":"PowerJob Server version 5.1.2 (and likely earlier) uses a predictable JWT signing key for HS256-based authentication. This allows a remote attacker to execute arbitrary code.","severity":"critical","cvss":9.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","cwe":["CWE-321"],"published":"2026-09-04","updated":"2026-09-08","sourceUpdated":"2026-09-08T19:42:20.313","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-75431","references":[{"url":"https://gist.github.com/unpredictable21/39e6ce22e4bc45b0e553d0fa6a6e4d1c","label":"cve@mitre.org"},{"url":"https://github.com/PowerJob/PowerJob/blob/master/docker-compose.yml","label":"cve@mitre.org"},{"url":"https://github.com/PowerJob/PowerJob/blob/master/powerjob-server/powerjob-server-auth/src/main/java/tech/powerjob/server/auth/jwt/impl/DefaultSecretProvider.java","label":"cve@mitre.org"},{"url":"https://github.com/PowerJob/PowerJob/blob/master/powerjob-server/powerjob-server-auth/src/main/java/tech/powerjob/server/auth/jwt/impl/JwtServiceImpl.java","label":"cve@mitre.org"},{"url":"https://github.com/PowerJob/PowerJob/blob/master/powerjob-server/powerjob-server-openapi/src/main/java/tech/powerjob/server/openapi/service/impl/OpenApiSecurityServiceImpl.java","label":"cve@mitre.org"},{"url":"https://github.com/PowerJob/PowerJob/blob/master/powerjob-server/powerjob-server-starter/src/main/resources/application-daily.properties","label":"cve@mitre.org"}],"tags":["nvd","exploit-available"],"epss":0.00772,"epssPercentile":0.54199,"exploits":{"github":1,"githubRepos":["https://github.com/unpredictable21/CVE-2026-75431_PowerJob_jwt_key_predictable"],"checkedAt":"2026-09-23T07:14:47.695Z"},"exploitAvailable":true,"ingestedAt":"2026-09-08T20:10:03.166Z","slug":"CVE-2026-75431","body":"## Overview\n\nPowerJob Server version 5.1.2 (and likely earlier) uses a predictable JWT signing key for HS256-based authentication. This allows a remote attacker to execute arbitrary code.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":62,"depthScoreParts":{"impact":50.1,"likelihood":0.2,"exploitation":12,"ransomware":0},"changes":[]}