{"id":"EM-20261103-OOW9","url":"https://cyber.eventmonitor.net/incident/EM-20261103-OOW9/","type":"cve","title":"Critical Elo Vulnerability (CVE-2026-44266)","subtitle":"CVE-2026-44266","subject":"CVE-2026-44266","status":"Developing","severity":"critical","affected":[],"headline":null,"born":"2026-11-03T18:18:02.957Z","firstSignal":"2026-11-03T17:51:30.000Z","lastSignal":"2026-11-03T18:18:02.957Z","updated":"2026-11-04T14:43:58.877Z","revision":1,"life":[{"status":"Born","at":"2026-11-03T18:18:02.957Z","why":"second independent source: C6 NVD CVE API 2.0"},{"status":"Developing","at":"2026-11-03T18:18:02.957Z","why":"signals keep joining"}],"changeLog":[{"at":"2026-11-03T17:51:30.000Z","what":"First signal: C26 GitHub Advisory Database"},{"at":"2026-11-03T18:18:02.957Z","what":"Born: second source, C6 NVD CVE API 2.0. Page EM-20261103-OOW9 created."}],"stages":[{"name":"Disclosed","at":"2026-11-03T18:18:02.957Z","detail":"C6 NVD published"},{"name":"Scored","at":"2026-11-03T18:18:02.957Z","detail":"CVSS 9.8 · EPSS 1.0%"},{"name":"Exploited","at":null,"detail":"No exploitation reported"},{"name":"Advisories","at":null,"detail":"None yet"},{"name":"Vendor Response","at":null,"detail":"None in sources yet"},{"name":"Resolved","at":null,"detail":"After 14 quiet days"}],"signals":[{"at":"2026-11-03T17:51:30.000Z","source":"C26","sourceName":"GitHub Advisory Database","role":"Database","severity":4,"title":"GHSA-7w38-ggh5-v542 / CVE-2026-44266: Elo Ruby backend has Remote Code Execution via unescaped `#{...}` interpolation in emitted string literals and subtype-constraint labels","text":"npm:@enspirit/elo","url":"https://github.com/advisories/GHSA-7w38-ggh5-v542"},{"at":"2026-11-03T18:18:02.957Z","source":"C6","sourceName":"NVD CVE API 2.0","role":"Database","severity":4,"title":"CVE-2026-44266 (CVSS 9.8)","text":"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","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44266"}],"crowd":[],"reference":{"nvd":{"published":"2026-11-03T18:18:02.957","score":9.8,"severity":"CRITICAL","desc":"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 b","product":"","seen":1793803438877},"kev":null,"epss":{"epss":0.00995,"pct":0.62761,"at":1793803438877},"p0":false},"mergedInto":null,"publisher":"Event Monitor Cyber"}