6.3

CVE-2026-47856: spring spring integration Deserialization of Untrusted Data

CVSS: 6.3v3.1MediumAnalyzed
Published 26-08-2026Last modified 27-08-2026
Open JSON

Vulnerability summary

CVE-2026-47856 is a medium (CVSS 6.3) Deserialization of Untrusted Data vulnerability in spring spring integration. EPSS estimates a 0.31% chance of exploitation in the next 30 days, higher than 22.6% of scored vulnerabilities.

Overall risk
25/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.31%
0%100%
Low · +0.07 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 26-08-2026
    PublishedVulnerability first disclosed.
  2. 27-08-2026
    Last modifiedVulnerability information updated.

Description

Spring Integration's JSON to object conversion uses the json__TypeId__ header to choose the deserialization target type, and resolves that header value to a class with ClassUtils.forName and no type/package allow-list. Spring Integration 7.1.0 Spring Integration 7.0.0 - 7.0.5 Spring Integration 6.5.0 - 6.5.10 Spring Integration 6.4.0 - 6.4.12 Spring Integration 5.5.21 and earlier

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.31%

Chance of exploitation in the next 30 days

Percentile

23%

Versus all other CVEs

30-day change

+0.07 pp

From 0.24% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.31%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Spring1 product
  • spring integration7.1.0 | ≥ 7.0.0, ≤ 7.0.5 | ≥ 6.5.0, ≤ 6.5.10 | ≥ 6.4.0, ≤ 6.4.12 | ≤ 5.5.21
Vmware1 product
  • spring_integration< 5.5.22 | ≥ 6.4.0, < 6.4.13 | ≥ 6.5.0, < 6.5.11 | ≥ 7.0.0, < 7.0.5.1 | ≥ 7.1.0, < 7.1.0.1

2 vendors · 2 products

References

1 links