CVE-2026-41855CWE-502

Spring Framework Unsafe Deserialization via Jackson JMS Converters

High · published June 9, 2026

CVSS v3.1
8.1
EPSS
0%
Percentile
24.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00328 · 24.7th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2026-06-09T03:51Z
EPSS history
Timeline
  • 09 JUN 03:51Z
    Spring Framework Unsafe Deserialization via Jackson JMS Converters
    cvelistv5