CVE-2026-41728 Spring Data REST JSON Patch bypasses Jackson read-only property protection on nested objects and collections

High 7.5 Published Updated

Attackers can modify protected nested object properties via JSON Patch requests, bypassing Jackson read-only restrictions in Spring Data REST applications.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-41728?

CVE-2026-41728 is a high-severity missing authorization vulnerability in Spring Data REST, published on 9 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Spring Data REST's JSON Patch (application/json-patch+json) implementation does not apply the write-access filter to intermediate path segments when resolving a multi-segment JSON Pointer.

Affected versions: Spring Data REST 3.7.0 through 3.7.19; 4.3.0 through 4.3.16; 4.4.0 through 4.4.14; 4.5.0 through 4.5.11; 5.0.0 through 5.0.5.

Weakness: CWE-284

Which versions are affected by CVE-2026-41728?

10 open source packages ship an affected version, including org.springframework.data:spring-data-rest-core. It affects 1 product.

PackageAffectedFixed in
org.springframework.data:spring-data-rest-core MavenAll versions to 3.7.19None
org.springframework.data:spring-data-rest-core MavenAll versions to 3.7.19None
org.springframework.data:spring-data-rest-core MavenFrom 4.3.0 to 4.3.16None
org.springframework.data:spring-data-rest-core MavenFrom 4.3.0 to 4.3.16None
org.springframework.data:spring-data-rest-core MavenFrom 4.4.0 to 4.4.14None
org.springframework.data:spring-data-rest-core MavenFrom 4.4.0 to 4.4.14None
4 more packages
org.springframework.data:spring-data-rest-core MavenFrom 4.5.04.5.12
org.springframework.data:spring-data-rest-core MavenFrom 4.5.04.5.12
org.springframework.data:spring-data-rest-core MavenFrom 5.0.05.0.6
org.springframework.data:spring-data-rest-core MavenFrom 5.0.05.0.6

Products include Vmware Spring Data Rest.

How do I fix CVE-2026-41728?

Upgrade org.springframework.data:spring-data-rest-core to a fixed version for your release line: 4.5.12 or 5.0.6.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-41728 being exploited?

There is no known exploitation of CVE-2026-41728 in the wild and no public exploit code.

Sources

Also known as CLSA-2026-1790958488, GHSA-cv39-x4c6-hhp2, ROOT-APP-MAVEN-CVE-2026-41728.

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