{"schemaVersion":3,"id":"CVE-2026-41855","aliases":["UBUNTU-CVE-2026-41855","DEBIAN-CVE-2026-41855","CGA-3j96-h4v9-wwvc","CGA-m4cg-wq84-ggwj","GHSA-x863-p983-p4f7","CGA-pw96-5wmm-pqm9","CGA-v267-h529-2p85"],"status":"published","duplicateOf":null,"title":null,"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 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