{"id":"CVE-2026-84218","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-84218","summary":"jolokia-service-jsr160 Incomplete target JMX Service URL deny list handling for user-controlled input","details":"A flaw was found in Jolokia's JSR-160 proxy functionality where insufficient validation of client-controlled JMX service URLs allows a bypass of the denylist introduced to mitigate CVE-2018-1000130. The proxy accepts a `target.url` value from a Jolokia POST request and passes it to `JMXServiceURL` and `JMXConnectorFactory` for establishing the remote JMX connection. The existing denylist only rejects URLs matching `service:jmx:rmi:///jndi/ldap:.*`, which can be bypassed using alternative valid JMX service URL forms, including `ldaps://` schemes or LDAP URLs with a non-empty JMX host component. These URLs are accepted as valid `JMXServiceURL` objects and can cause the Jolokia agent JVM to perform a JNDI lookup against an attacker-controlled LDAP endpoint. This can result in server-side request forgery (SSRF), forwarding of supplied JMX credentials to the remote endpoint, and potentially remote code execution depending on the classes and configuration available in the target JVM.","published":"2026-09-01T15:31:13Z","modified":"2026-10-07T18:15:10.799001851Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Maven","name":"org.jolokia:jolokia-service-jsr160","fixedVersion":"2.6.2"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-84218"},{"type":"WEB","url":"https://github.com/jolokia/jolokia/issues/1049"},{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2026-84218"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2526752"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-c9ff-59g8-m36q"},{"type":"PACKAGE","url":"https://github.com/jolokia/jolokia"},{"type":"WEB","url":"https://jolokia.org/#jolokia_2_6_2_released_with_security_fixes"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-07T18:15:10.799001851Z"}}