{"id":"CVE-2026-59650","title":"In Bouncy Castle for Java before 1.85, MTI/A0 DH agreement exponentiates unvalidated peer value","summary":"In Bouncy Castle for Java before 1.85, MTI/A0 DH agreement exponentiates unvalidated peer value. This issue also affects Bouncy Castle for Java LTS before 2.73.12.","severity":"high","cwe":["CWE-20","CWE-325"],"published":"2026-08-03","updated":"2026-08-03","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-59650","references":[{"url":"https://github.com/bcgit/bc-java/commit/daeaae9d7075d04f40812e68671ebf4c777b5148","label":"91579145-5d7b-4cc5-b925-a0262ff19630"},{"url":"https://github.com/bcgit/bc-java/wiki/CVE-2026-59650","label":"91579145-5d7b-4cc5-b925-a0262ff19630"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-59650.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-59650"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2510203"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-59650"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59650"}],"tags":["nvd","csaf","vex","red-hat"],"ingestedAt":"2026-08-03T01:21:08.044Z","epss":0.00337,"epssPercentile":0.26925,"vendor":"Red Hat","product":"Red Hat OpenShift AI (RHOAI)","affected":["amq_broker 7","build_of_apache_camel_for_spring_boot 4","build_of_apicurio_registry 3","build_of_keycloak","fuse 7","jboss_enterprise_application_platform 7","jboss_enterprise_application_platform 8","single_sign_on 7","openshift_developer_tools_and_services","ansible_automation_platform 2","openshift_ai_rhoai","openshift_dev_spaces","satellite 6"],"cvss":7.4,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","cvssSource":"vendor","slug":"CVE-2026-59650","body":"## Overview\n\nIn Bouncy Castle for Java before 1.85, MTI/A0 DH agreement exponentiates unvalidated peer value. This issue also affects Bouncy Castle for Java LTS before 2.73.12.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Important · affected: Red Hat AMQ Broker 7, Red Hat build of Apache Camel for Spring Boot 4, Red Hat build of Apicurio Registry 3, Red Hat Build of Keycloak, Red Hat Fuse 7, Red Hat JBoss Enterprise Application Platform 7, … · no fix planned: Red Hat Fuse 7, Red Hat JBoss Enterprise Application Platform 7, Red Hat Single Sign-On 7, Red Hat AMQ Broker 7, … · updated 2026-09-24 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-59650.json)","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":40.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":209982,"id":"CVE-2026-59650","ts":1790235606830,"field":"cvss","old":null,"new":"7.4"},{"seq":209981,"id":"CVE-2026-59650","ts":1790235606830,"field":"severity","old":"none","new":"high"},{"seq":209511,"id":"CVE-2026-59650","ts":1790149130203,"field":"cvss","old":"7.4","new":null},{"seq":209510,"id":"CVE-2026-59650","ts":1790149130203,"field":"severity","old":"high","new":"none"},{"seq":209501,"id":"CVE-2026-59650","ts":1790149052467,"field":"cvss","old":null,"new":"7.4"},{"seq":209500,"id":"CVE-2026-59650","ts":1790149052467,"field":"severity","old":"none","new":"high"}]}