CVE-2026-41729

Spring Data REST SpEL Injection via Map Key in JSON Patch

State: Published
Severity: 8.1 High
Published: Jun 9, 2026
Updated: Jun 11, 2026
Reserved: Apr 22, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	8.1 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N	vmware

Weaknesses

CWE-917 Improper Neutralization of Special Elements used in an Expression Language Statement (Expression Language Injection)

Affected Products

Product	Versions
Spring Data RESTSpring	3.7.0 to before 3.7.20Affected 4.3.0 to before 4.3.17Affected 4.4.0 to before 4.4.15Affected 4.5.0 to before 4.5.12Affected 5.0.0 to before 5.0.6Affected

References

https://spring.io/security/cve-2026-41729

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