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CVE-2026-41729 is a high-severity Spring Expression Language (SpEL) injection vulnerability in Spring Data REST JSON Patch processing. When a persistent aggregate, including a reachable embedded type, exposes a Map-typed property, Spring Data REST incorporates the JSON Pointer path segment used as the map key directly into a SpEL expression. The map-key value is not sanitized or validated before expression construction, permitting a crafted path segment to escape the intended map indexer literal and cause evaluation of attacker-controlled SpEL sub-expressions in the aggregate-root context. Both read and write JSON Patch paths are affected. Affected versions are 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, and 5.0.0 through 5.0.5; unsupported versions may also be affected.
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A SpEL expression injection vulnerability in Spring Data that can be exploited via map-typed properties during JSON Patch processing, potentially leading to remote code execution.
A SpEL expression injection vulnerability in Spring Data REST triggered via JSON Patch requests involving map-typed properties.
A high-severity SpEL injection vulnerability in Spring Data REST where unsanitized JSON Patch map-key path segments are embedded into SpEL expressions, allowing arbitrary SpEL sub-expression evaluation in the context of the aggregate root.
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Cross-references every affected SKU, including bundled OEM variants.
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