{"id":"CVE-2026-40975","aliases":["GHSA-m4x9-hx6x-2c43"],"url":"https://o3.security/vulnerability/CVE-2026-40975","summary":"Spring Boot's random value property source uses a weak PRNG unsuitable for secrets","details":"Values produced by ${random.value} are not suitable for use as secrets. ${random.uuid} is not affected. ${random.int} and ${random.long} should never be used for secrets as they are numeric values with a predictable range.\n\nAffected: Spring Boot 4.0.0–4.0.5 (fix 4.0.6), 3.5.0–3.5.13 (fix 3.5.14), 3.4.0–3.4.15 (fix 3.4.16), 3.3.0–3.3.18 (fix 3.3.19), 2.7.0–2.7.32 (fix 2.7.33); random value property source / weak PRNG for secrets. Versions that are no longer supported are also affected per vendor advisory.","published":"2026-04-27T23:32:58.596Z","modified":"2026-07-27T03:56:39.507809867Z","cvss":{"score":4.8,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.springframework.boot:spring-boot-cassandra","fixedVersion":"4.0.6"},{"ecosystem":"Maven","name":"org.springframework.boot:spring-boot-cassandra","fixedVersion":"3.5.14"},{"ecosystem":"Maven","name":"org.springframework.boot:spring-boot-cassandra","fixedVersion":null},{"ecosystem":"Maven","name":"org.springframework.boot:spring-boot-cassandra","fixedVersion":null},{"ecosystem":"Maven","name":"org.springframework.boot:spring-boot-cassandra","fixedVersion":null}],"fix":null,"references":[{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40975.json"},{"type":"WEB","url":"https://spring.io/security/cve-2026-40975"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:17668"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:21772"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:22619"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:25089"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2026-40975"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40975.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40975"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2463331"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-27T03:56:39.507809867Z"}}