CVE-2026-44266

See a problem?
Please try reporting it to the source first.

Source

https://cve.org/CVERecord?id=CVE-2026-44266

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44266.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-44266

Aliases

GHSA-7w38-ggh5-v542

Published

2026-11-03T17:51:12Z

Modified

2026-11-04T02:47:41Z

Severity

9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator

Summary

Elo: Remote Code Execution in Elo Ruby backend via unescaped `#{...}` interpolation in emitted string literals and subtype-constraint labels

Details

Elo is a purely functional expression language for no-code tools. Prior to 1.0.1, the Ruby backend in src/compilers/ruby.ts embeds attacker-controlled text in Ruby double-quoted strings without escaping #, so Ruby interpolation forms in the string-literal emitter or the labelled subtype-constraint branch become executable Ruby. The affected entry points include the /try playground with the Ruby target, bin/eloc -t ruby -x, and defaultFormats.elo.parse() followed by Ruby emission. A failing labelled subtype constraint evaluates its message, while an ordinary string literal is evaluated when the compiled Ruby runs, allowing Ruby code and shell command execution through backticks. JavaScript, Python, and SQL emission are not affected by this Ruby-specific path. This issue is fixed in version 1.0.1.

Database specific

{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-116",
        "CWE-1336",
        "CWE-94"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44266.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "range": [
                        {
                            "fixed": "1.0.1"
                        }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                }
            ]
        },
        {
            "extracted_events": [
                {
                    "range": [
                        {
                            "fixed": "1.0.1"
                        },
                        {
                            "fixed": "1.0.1"
                        }
                    ],
                    "source": "DESCRIPTION"
                }
            ]
        }
    ]
}

References

Affected packages

Git / github.com/enspirit/elo

Affected ranges

Type

GIT

Repo

https://github.com/enspirit/elo

Events

Introduced

Fixed

51b869963fbe445c18328714a7ccfbd76b21ba38

Fixed

d2a89a8db76a244eb740687524a7e8529b7554b5

Database specific

Show details

{
    "extracted_events": [
        {
            "range": [
                {
                    "fixed": "51b869963fbe445c18328714a7ccfbd76b21ba38"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "range": [
                {
                    "fixed": "d2a89a8db76a244eb740687524a7e8529b7554b5"
                }
            ],
            "source": "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

v0.*

v0.9.1

v0.9.10

v0.9.11

v0.9.12

v0.9.14

v0.9.2

v0.9.3

v0.9.4

v0.9.5

v0.9.6

v0.9.7

v0.9.8

v0.9.9

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44266.json"