CVE-2026-41729: high-severity vulnerability in Spring Data REST
Spring Data REST SpEL Injection via Map Key in JSON Patch
Published · Updated
41Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 8.1epss 0.4%
from disclosure to weapon0 days
Published on NVDJun 9
1st PoCMay 13
exploitation probability
0.4%top 67% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Affected products
Spring · Spring Data RESTpublic PoCs found — 1
githubgithub.com/daehyuh/CVE-2026-41729★ 0⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — Spring Data REST
In the same product, most dangerous first.
CVE-2026-47849HIGHSpring Data REST allows mutation of identifier and version properties via JSON PatchEPSS 0.4%CVE-2026-41728HIGHSpring Data REST JSON Patch bypasses Jackson read-only property protection on nested objects and collectionsEPSS 0.3%CVE-2026-41730MEDIUMSpring Data REST exposes persistence-layer internals in error responsesEPSS 0.3%CVE-2026-41837MEDIUMSpring Data REST Querydsl integration exposes Jackson-hidden persistent fields as filter keysEPSS 0.3%CVE-2026-47850MEDIUMSpring Data REST allows mutation of the version property of immutable aggregates via PUTEPSS 0.3%