Enspirit Elo up to 1.0.0 AST API input validation

Summaryinfo

A vulnerability labeled as problematic has been found in Enspirit Elo up to 1.0.0. This vulnerability affects unknown code of the component AST API. Executing a manipulation of the argument int_literal.value/variable.name/member_access.property/object_literal keys/datapath segments/lambda.params[].name/SQL let binding name can lead to input validation. This vulnerability is registered as CVE-2026-44265. The attack needs to be launched locally. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Enspirit Elo up to 1.0.0 and classified as problematic. This vulnerability affects an unknown part of the component AST API. The manipulation of the argument int_literal.value/variable.name/member_access.property/object_literal keys/datapath segments/lambda.params[].name/SQL let binding name with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Elo is a purely functional expression language for no-code tools. Prior to 1.0.1, Elo's programmatic AST API accepts arbitrary values from JSON-deserialized input, plugin output, or other untyped sources and interpolates them into generated JavaScript, Ruby, Python, or SQL without runtime syntax validation. The affected fields are int_literal / float_literal .value, variable.name, member_access.property, object_literal keys, datapath segments, lambda.params[].name, and the SQL let binding name. Crafted values become executable expressions or identifiers, allowing arbitrary code execution in JavaScript, Ruby, and Python targets and SQL injection in the SQL target. This programmatic AST-object path is distinct from the plain-string constructor-chain sandbox escape. This issue is fixed in version 1.0.1.

The advisory is available at github.com. This vulnerability was named CVE-2026-44265 since 05/05/2026. The exploitation appears to be easy. Local access is required to approach this attack. Technical details are known, but there is no available exploit.

Upgrading to version 1.0.1 eliminates this vulnerability.

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Productinfo

Vendor

• Enspirit

Name

• Elo

Version

• 1.0

Website

• Product: https://github.com/enspirit/elo/

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