CVE-2026-47849: Spring Data REST allows mutation of identifier and version properties via JSON Patch

Severity: high (CVSS 7.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-27 · updated 2026-09-02
Weakness: CWE-915

Description

Spring Data REST does not guard identifier (@Id) and version (@Version) properties against mutation via RFC 6902 JSON Patch (application/json-patch+json) requests. Spring Data REST 5.1.0 Spring Data REST 5.0.0 - 5.0.6 Spring Data REST 4.5.0 - 4.5.12 Spring Data REST 4.0.0 - 4.4.15 Spring Data REST 3.7.20 and earlier

Affected products

Spring Data REST: before 3.7.21; from 4.0.0 before 4.4.16; from 4.5.0 before 4.5.13; from 5.0.0 before 5.0.6.1; from 5.1.0 before 5.1.0.1 — fixed in 3.7.21, 4.4.16, 4.5.13, 5.0.6.1, 5.1.0.1
Spring Data REST: from 5.0.0 through 5.0.6; from 4.5.0 through 4.5.12; from 4.0.0 through 4.4.15; through 3.7.20; 5.1.0

How to fix

Upgrade to a fixed version: Spring Data REST 3.7.21, 4.4.16, 4.5.13, 5.0.6.1. Check the vendor advisory for mitigations.

References

https://spring.io/security/cve-2026-47849

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