CVE-2026-41855

Spring Framework Unsafe Deserialization via Jackson JMS Converters

Published Jun 9, 2026 CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
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.

Affected versions:
Spring 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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-x863-p983-p4f7 Spring Framework Unsafe Deserialization via Jackson JMS Converters
References
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Spring
Spring spring Framework
Vendors & Products Spring
Spring spring Framework
Type Values Removed Values Added
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. Affected versions: Spring 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.
Title Spring Framework Unsafe Deserialization via Jackson JMS Converters
Weaknesses CWE-502
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
vmware
Published
Updated
Jun 27, 2026, 9:07 PM
Reserved
Apr 22, 2026, 6:22 AM
Status
Analyzed
Published
Jun 9, 2026, 5:16 AM
Modified
Jul 23, 2026, 8:10 AM