{"id":"CVE-2026-41855","title":"In an untrusted JMS environment, org.springframework.jms.support.converter.MappingJackson2MessageConverter and org.springframework.jms.support.converter.JacksonJsonMessageConverter allow arbitrary class instantiation, which can lead to u…","summary":"In an untrusted JMS environment, org.springframework.jms.support.converter.MappingJackson2MessageConverter and org.springframework.jms.support.converter.JacksonJsonMessageConverter allow arbitrary class instantiation, which can lead to u…","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-502"],"published":"2026-06-09","updated":"2026-06-29","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-41855","references":[{"url":"https://spring.io/security/cve-2026-41855","label":"security@vmware.com"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41855"},{"url":"https://github.com/spring-projects/spring-framework/commit/9bec52b1ec741976658e916850b31f41afd2da2d"},{"url":"https://github.com/advisories/GHSA-x863-p983-p4f7"}],"tags":["nvd","ghsa","maven"],"epss":0.00288,"epssPercentile":0.21605,"ingestedAt":"2026-06-29T14:58:26.149Z","aliases":["GHSA-x863-p983-p4f7"],"ecosystem":"maven","vendor":"springframework","product":"org.springframework:spring-jms","affected":["org.springframework:spring-jms <= 5.3.39","org.springframework:spring-jms >= 6.0.0, <= 6.1.21","org.springframework:spring-jms >= 6.2.0, <= 6.2.18","org.springframework:spring-jms >= 7.0.0-M1, <= 7.0.7"],"patched":["org.springframework:spring-jms 6.2.19","org.springframework:spring-jms 7.0.8"],"slug":"CVE-2026-41855","body":"## Overview\n\nIn an untrusted JMS environment, org.springframework.jms.support.converter.MappingJackson2MessageConverter and org.springframework.jms.support.converter.JacksonJsonMessageConverter allow arbitrary class instantiation, which can lead to unauthorized actions via gadget class deserialization.\n\nAffected versions:\nSpring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-41855)\n\nAffected packages:\n\n- `org.springframework:spring-jms <= 5.3.39`\n- `org.springframework:spring-jms >= 6.0.0, <= 6.1.21`\n- `org.springframework:spring-jms >= 6.2.0, <= 6.2.18`\n- `org.springframework:spring-jms >= 7.0.0-M1, <= 7.0.7`\n\nPatched in:\n\n- `org.springframework:spring-jms 6.2.19`\n- `org.springframework:spring-jms 7.0.8`\n\nSource: https://github.com/advisories/GHSA-x863-p983-p4f7","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}