{"cve":"CVE-2026-41855","nvd":{"published":"2026-06-09T05:16:37.770","modified":"2026-07-23T08:10:00.137","status":"Analyzed","description":"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 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.","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-502"],"references":["https://spring.io/security/cve-2026-41855"],"products":["vmware:spring_framework"],"source":"nvd","synced_at":"2026-10-19T22:38:48.522727527+00:00"},"epss":{"cve":"CVE-2026-41855","score":0.00328,"percentile":0.25923,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-x863-p983-p4f7","url":"https://osv.dev/vulnerability/GHSA-x863-p983-p4f7","summary":"Spring Framework Unsafe Deserialization via Jackson JMS Converters","modified":"2026-09-08T17:56:07.421848Z","packages":[{"ecosystem":"Maven","name":"org.springframework:spring-jms","purl":"pkg:maven/org.springframework/spring-jms","ranges":["<=5.3.39"],"fixed":[]},{"ecosystem":"Maven","name":"org.springframework:spring-jms","purl":"pkg:maven/org.springframework/spring-jms","ranges":[">=6.0.0 <=6.1.21"],"fixed":[]},{"ecosystem":"Maven","name":"org.springframework:spring-jms","purl":"pkg:maven/org.springframework/spring-jms","ranges":[">=6.2.0 <6.2.19"],"fixed":["6.2.19"]},{"ecosystem":"Maven","name":"org.springframework:spring-jms","purl":"pkg:maven/org.springframework/spring-jms","ranges":[">=7.0.0-M1 <7.0.8"],"fixed":["7.0.8"]}]}],"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."]}