Improper access control in Spring Data REST - CVE-2026-41728
Published: August 28, 2026
Vulnerability identifier: #VU146269
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-41728
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to modify read-only nested properties.
The vulnerability exists due to improper access control in Spring Data REST JSON Patch processing when resolving multi-segment JSON Pointer paths. A remote attacker can send a specially crafted JSON Patch request to modify read-only nested properties.
Affected applications include domain models with an embeddable object, collection, or map property whose container is marked read-only at the Jackson level while the inner element type has no per-field restriction.
Affected software
Spring Data REST
How to mitigate CVE-2026-41728
Install security update from vendor's website.
Spring Data REST - addressed in versions 3.7.20, 4.3.17, 4.4.15, 4.5.12, 5.0.6