CVE-2026-41729: CWE-917: Improper Neutralization of Special Elements used in an Expression Language Statement (Expression Language Injection) in Spring Spring Data REST
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.
AI Analysis
Technical Summary
CVE-2026-41729 describes a vulnerability in Spring Data REST where SpEL expression injection is possible through map-typed properties during the handling of JSON Patch (application/json-patch+json) requests. The vulnerability arises because the JSON Pointer path segment used as the map key is directly embedded into a SpEL expression without proper sanitization or validation, enabling injection of malicious expressions. This affects multiple versions of Spring Data REST from 3.7.0 up to 5.0.5 in specified version ranges.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker with low privileges (PR:L) and no user interaction (UI:N) to execute arbitrary SpEL expressions, leading to high confidentiality and integrity impact. This could result in unauthorized data access or modification within the affected application context. Availability impact is not indicated.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, avoid exposing map-typed properties to JSON Patch requests or implement strict input validation and sanitization on JSON Pointer path segments to prevent injection. Monitor vendor channels for updates and apply official fixes once released.
CVE-2026-41729: CWE-917: Improper Neutralization of Special Elements used in an Expression Language Statement (Expression Language Injection) in Spring Spring Data REST
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.
CVSS v3.1
Score 8.1high
Affected software
pkg:maven/org.springframework.data/spring-data-rest-webmvcRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-41729 describes a vulnerability in Spring Data REST where SpEL expression injection is possible through map-typed properties during the handling of JSON Patch (application/json-patch+json) requests. The vulnerability arises because the JSON Pointer path segment used as the map key is directly embedded into a SpEL expression without proper sanitization or validation, enabling injection of malicious expressions. This affects multiple versions of Spring Data REST from 3.7.0 up to 5.0.5 in specified version ranges.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker with low privileges (PR:L) and no user interaction (UI:N) to execute arbitrary SpEL expressions, leading to high confidentiality and integrity impact. This could result in unauthorized data access or modification within the affected application context. Availability impact is not indicated.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, avoid exposing map-typed properties to JSON Patch requests or implement strict input validation and sanitization on JSON Pointer path segments to prevent injection. Monitor vendor channels for updates and apply official fixes once released.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- vmware
- Date Reserved
- 2026-04-22T06:21:39.015Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a28a8098dd33fbd8595f10d
Added to database: 06/09/2026, 23:55:53 UTC
Last enriched: 06/17/2026, 08:41:20 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 79
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