{"cve":"CVE-2025-59390","nvd":{"published":"2025-11-26T09:15:46.033","modified":"2026-06-17T09:46:04.710","status":"Analyzed","description":"Apache Druid’s Kerberos authenticator uses a weak fallback secret when the `druid.auth.authenticator.kerberos.cookieSignatureSecret` configuration is not explicitly set. In this case, the secret is generated using `ThreadLocalRandom`,\n which is not a crypto-graphically secure random number generator. This \nmay allow an attacker to predict or brute force the secret used to sign \nauthentication cookies, potentially enabling token forgery or \nauthentication bypass. Additionally, each process generates its own \nfallback secret, resulting in inconsistent secrets across nodes. This \ncauses authentication failures in distributed or multi-broker \ndeployments, effectively leading to a incorrectly configured clusters. Users are \nadvised to configure a strong `druid.auth.authenticator.kerberos.cookieSignatureSecret`\n\n\n\nThis issue affects Apache Druid: through 34.0.0.\n\nUsers are recommended to upgrade to version 35.0.0, which fixes the issue making it mandatory to set `druid.auth.authenticator.kerberos.cookieSignatureSecret` when using the Kerberos authenticator. Services will fail to come up if the secret is not set.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-338"],"references":["https://lists.apache.org/thread/jwjltllnntgj1sb9wzsjmvwm9f8rlhg8","http://www.openwall.com/lists/oss-security/2025/11/26/1"],"products":["apache:druid"],"source":"nvd","synced_at":"2026-10-19T22:16:02.354564667+00:00"},"epss":{"cve":"CVE-2025-59390","score":0.00701,"percentile":0.53228,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-w88f-4875-99c8","url":"https://osv.dev/vulnerability/GHSA-w88f-4875-99c8","summary":"Apache Druid’s Kerberos authenticator uses a weak fallback secret","modified":"2025-11-26T23:50:50.606360Z","packages":[{"ecosystem":"Maven","name":"org.apache.druid:druid","purl":"pkg:maven/org.apache.druid/druid","ranges":["<35.0.0"],"fixed":["35.0.0"]}]}],"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."]}