CVE-2026-41729
HIGHSpring Data REST SpEL Injection via Map Key in JSON Patch
Title source: cnaExploitation Summary
EIP tracks 1 public exploit for CVE-2026-41729. PoCs published by daehyuh.
AI-analyzed exploit summary This repository contains a functional exploit PoC for CVE-2026-41729, demonstrating a Spring Data REST JSON Patch vulnerability that bypasses @JsonIgnore annotations via crafted map keys. The test case shows how an attacker can modify hidden fields by manipulating the path in a JSON Patch request.
Description
Spring Data REST is vulnerable to SpEL expression injection through map-typed properties when processing JSON Patch (application/json-patch+json) requests. When a persistent entity exposes a Map-typed property, the JSON Pointer path segment used as the map key is embedded directly into a SpEL expression without sanitization or validation. 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.
Exploits (1)
This repository contains a functional exploit PoC for CVE-2026-41729, demonstrating a Spring Data REST JSON Patch vulnerability that bypasses @JsonIgnore annotations via crafted map keys. The test case shows how an attacker can modify hidden fields by manipulating the path in a JSON Patch request.
References (1)
Scores
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N