{"cve":"CVE-2019-10754","nvd":{"published":"2019-09-23T23:15:10.640","modified":"2026-06-17T02:11:36.467","status":"Modified","description":"Multiple classes used within Apereo CAS before release 6.1.0-RC5 makes use of apache commons-lang3 RandomStringUtils for token and ID generation which makes them predictable due to RandomStringUtils PRNG's algorithm not being cryptographically strong.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","score":8.1},"cwes":["CWE-338"],"references":["https://snyk.io/vuln/SNYK-JAVA-ORGAPEREOCAS-467402","https://snyk.io/vuln/SNYK-JAVA-ORGAPEREOCAS-467404","https://snyk.io/vuln/SNYK-JAVA-ORGAPEREOCAS-467406","https://snyk.io/vuln/SNYK-JAVA-ORGAPEREOCAS-468868","https://snyk.io/vuln/SNYK-JAVA-ORGAPEREOCAS-468869"],"products":["apereo:central_authentication_service"],"source":"nvd","synced_at":"2026-10-19T20:59:10.855360465+00:00"},"epss":{"cve":"CVE-2019-10754","score":0.01767,"percentile":0.78096,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-g24w-373r-5pxg","url":"https://osv.dev/vulnerability/GHSA-g24w-373r-5pxg","summary":"Use of Insufficiently Random Values in Apereo CAS","modified":"2025-01-14T07:14:26.961906Z","packages":[{"ecosystem":"Maven","name":"org.apereo.cas:cas-server-support-simple-mfa","purl":"pkg:maven/org.apereo.cas/cas-server-support-simple-mfa","ranges":["<6.1.0-RC5"],"fixed":["6.1.0-RC5"]},{"ecosystem":"Maven","name":"org.apereo.cas:cas-server-support-oidc","purl":"pkg:maven/org.apereo.cas/cas-server-support-oidc","ranges":["<6.1.0-RC5"],"fixed":["6.1.0-RC5"]},{"ecosystem":"Maven","name":"org.apereo.cas:cas-server-core-services-api","purl":"pkg:maven/org.apereo.cas/cas-server-core-services-api","ranges":["<6.1.0-RC5"],"fixed":["6.1.0-RC5"]},{"ecosystem":"Maven","name":"org.apereo.cas:cas-server-support-oauth-core-api","purl":"pkg:maven/org.apereo.cas/cas-server-support-oauth-core-api","ranges":["<6.1.0-RC5"],"fixed":["6.1.0-RC5"]},{"ecosystem":"Maven","name":"org.apereo.cas:cas-server-support-shell","purl":"pkg:maven/org.apereo.cas/cas-server-support-shell","ranges":["<6.1.0-RC5"],"fixed":["6.1.0-RC5"]},{"ecosystem":"Maven","name":"org.apereo.cas:cas-server-core-services-authentication","purl":"pkg:maven/org.apereo.cas/cas-server-core-services-authentication","ranges":["<6.1.0-RC5"],"fixed":["6.1.0-RC5"]}]}],"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."]}