{"cve":"CVE-2023-31582","nvd":{"published":"2023-10-25T18:17:27.777","modified":"2026-06-17T05:57:12.100","status":"Modified","description":"jose4j before v0.9.3 allows attackers to set a low iteration count of 1000 or less.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","score":7.5},"cwes":["CWE-331"],"references":["https://bitbucket.org/b_c/jose4j/issues/203/insecure-support-of-setting-pbe-less-then","https://github.com/KANIXB/JWTIssues/blob/main/jose4j%20issue.md","https://bitbucket.org/b_c/jose4j/issues/203/insecure-support-of-setting-pbe-less-then","https://github.com/KANIXB/JWTIssues/blob/main/jose4j%20issue.md"],"products":["jose4j_project:jose4j"],"source":"nvd","synced_at":"2026-10-19T21:40:11.519948003+00:00"},"epss":{"cve":"CVE-2023-31582","score":0.00766,"percentile":0.55511,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-7g24-qg88-p43q","url":"https://osv.dev/vulnerability/GHSA-7g24-qg88-p43q","summary":"jose4j uses weak cryptographic algorithm","modified":"2026-09-10T03:49:58.667384204Z","packages":[{"ecosystem":"Maven","name":"org.bitbucket.b_c:jose4j","purl":"pkg:maven/org.bitbucket.b_c/jose4j","ranges":["<0.9.3"],"fixed":["0.9.3"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}