{"id":"CVE-2026-73098","aliases":["EUVD-2026-117407","GHSA-59fg-f5xc-xjg9"],"status":"published","title":"Apache Juneau: Unsafe reflection allows attacker-controlled class initialization during parsing","description":"Improper control of dynamically-loaded code vulnerability in Apache Juneau.\n\nWhen Apache Juneau parses a value into a property of type java.lang.Class (including parameterized forms), the default class swap loaded the named class with initialization enabled, so input naming a class on the application classpath ran that class's static initializer. The impact depends on the classes present in the deployment.\n\nThis issue affects Apache Juneau: through 9.2.0.\n\nUsers are recommended to upgrade to version 9.2.1, which fixes the issue.","severity":{"version":"4.0","score":10,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00462,"percentile":0.40331,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-470"],"published":"2026-11-05T11:49:18Z","modified":"2026-11-05T12:32:20Z","products":[{"vendor":"apache software foundation","product":"apache juneau"}],"references":[{"url":"https://lists.apache.org/thread.html/j05q7vw08j48o96tdlzcsd4sozx1lyl6","tags":["vendor-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73098"},{"url":"https://github.com/advisories/GHSA-59fg-f5xc-xjg9"}],"sources":{"cve":[{"id":"CVE-2026-73098","title":"Apache Juneau: Unsafe reflection allows attacker-controlled class initialization during parsing","description":"Improper control of dynamically-loaded code vulnerability in Apache Juneau.\n\nWhen Apache Juneau parses a value into a property of type java.lang.Class (including parameterized forms), the default class swap loaded the named class with initialization enabled, so input naming a class on the application classpath ran that class's static initializer. The impact depends on the classes present in the deployment.\n\nThis issue affects Apache Juneau: through 9.2.0.\n\nUsers are recommended to upgrade to version 9.2.1, which fixes the issue.","status":"published","published":"2026-11-05T11:49:18.771Z","modified":"2026-11-05T19:04:12.529Z","cvss":[{"version":"4.0","score":10,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","level":"critical","assessor":"cna"}],"cwes":["CWE-470"],"updated_at":"2026-11-05T20:54:59.980292Z"}],"euvd":[{"id":"EUVD-2026-117407","description":"Improper control of dynamically-loaded code vulnerability in Apache Juneau.\n\nWhen Apache Juneau parses a value into a property of type java.lang.Class (including parameterized forms), the default class swap loaded the named class with initialization enabled, so input naming a class on the application classpath ran that class's static initializer. The impact depends on the classes present in the deployment.\n\nThis issue affects Apache Juneau: through 9.2.0.\n\nUsers are recommended to upgrade to version 9.2.1, which fixes the issue.","status":"published","published":"2026-11-05T11:49:18Z","modified":"2026-11-05T19:04:12Z","cvss":[{"version":"4.0","score":10,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","level":"critical"}],"updated_at":"2026-11-05T20:01:48.85376Z"}],"ghsa":[{"id":"GHSA-59fg-f5xc-xjg9","title":"Improper control of dynamically-loaded code vulnerability in Apache Juneau.\n\nWhen Apache Juneau...","description":"Improper control of dynamically-loaded code vulnerability in Apache Juneau.\n\nWhen Apache Juneau parses a value into a property of type java.lang.Class (including parameterized forms), the default class swap loaded the named class with initialization enabled, so input naming a class on the application classpath ran that class's static initializer. The impact depends on the classes present in the deployment.\n\nThis issue affects Apache Juneau: through 9.2.0.\n\nUsers are recommended to upgrade to version 9.2.1, which fixes the issue.","status":"published","published":"2026-11-05T12:32:14Z","modified":"2026-11-05T12:32:20Z","cvss":[{"version":"4.0","score":10,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical"}],"cwes":["CWE-470"],"updated_at":"2026-11-05T13:18:51.260014Z"}],"nvd":[{"id":"CVE-2026-73098","description":"Improper control of dynamically-loaded code vulnerability in Apache Juneau.\n\nWhen Apache Juneau parses a value into a property of type java.lang.Class (including parameterized forms), the default class swap loaded the named class with initialization enabled, so input naming a class on the application classpath ran that class's static initializer. The impact depends on the classes present in the deployment.\n\nThis issue affects Apache Juneau: through 9.2.0.\n\nUsers are recommended to upgrade to version 9.2.1, which fixes the issue.","status":"published","published":"2026-11-05T12:17:50.77Z","modified":"2026-11-05T19:17:26.667Z","cvss":[{"version":"4.0","score":10,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical","assessor":"secondary"}],"cwes":["CWE-470"],"updated_at":"2026-11-05T21:56:49.918687Z"}]}}