Description
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.
Published: 2026-11-03
Score: 7.4 High
EPSS: n/a
KEV: No
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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-x9rp-7wh3-2rj5 Elo backends have code injection via unvalidated emission of programmatic AST fields
History

Tue, 03 Nov 2026 18:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Elo: Code injection in Elo backends via unvalidated emission of programmatic AST fields
Weaknesses CWE-20
CWE-749
CWE-89
CWE-94
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-11-03T17:47:03.347Z

Reserved: 2026-05-05T16:33:55.845Z

Link: CVE-2026-44265

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-03T18:18:02.760

Modified: 2026-11-03T18:18:02.760

Link: CVE-2026-44265

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-20

    Improper Input Validation

  • CWE-749

    Exposed Dangerous Method or Function

  • CWE-89

    Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

  • CWE-94

    Improper Control of Generation of Code ('Code Injection')