Event Monitor Cyber
EM-20261103-Q5WN VulnerabilityCritical severity

Critical Elo Vulnerability (CVE-2026-44267)

CVE-2026-44267

Status
Developing

Since : signals keep joining.

First Signal
Nov 03 17:53 UTCC26 GitHub Advisory Database
Page Born
Nov 03 18:18 UTCsecond source joined
Last Signal
Nov 03 18:18 UTC23 hours before snapshot
Sources
20 official · 2 research, news or crowd
Open For
21 hoursso far

Life Of This Page

  1. 1
    Born
    A second, independent source names it.
  2. 2
    Developing · Now
    New signals join; severity can move.
  3. 3
    Confirmed
    Not yet
    CISA KEV lists it, or exploitation in the wild is reported.
  4. 4
    Resolved
    Not yet
    Past the fix deadline and 14 days with no new signal.
  5. 5
    Archived
    Not yet
    30 days after resolved. Read only; the link keeps working. Reopens if it comes back.

The address and ID never change. A correction is logged, never overwritten. If two pages turn out to be one incident, the later one points to the earlier.

Vulnerability Lifecycle

  1. Disclosed: reached
    Nov 03 18:18 UTC
    C6 NVD published
  2. Scored: reached
    Nov 03 18:18 UTC
    CVSS 9.8 · EPSS 0.8%
  3. Exploited: not yet
    Not yet
    No exploitation reported
  4. Advisories: not yet
    Not yet
    None yet
  5. Vendor Response: not yet
    Not yet
    None in sources yet
  6. Resolved: not yet
    Not yet
    After 14 quiet days

Timeline

12:0018:00Nov 406:00BornC26 GitHub Advisory DatabaseC6 NVD CVE API 2.0

Point at a mark to read it. Squares are signals, colored by severity; every one is also listed under Signals.

Signals

  1. CVE-2026-44267 (CVSS 9.8) (opens source in a new tab) Elo is a purely functional expression language for no-code tools. Prior to 1.0.1, plain Elo strings supplied to defaultFormats.elo.parse(), bin/elo, or elo-lang.org/try can use .constructor.constructor to reach JavaScrip… Crit severityDatabaseC6 NVD CVE API 2.0
  2. GHSA-33r5-xmm8-v6x5 / CVE-2026-44267: Elo JavaScript emitter has sandbox escape to arbitrary Node.js / browser code execution via unfiltered `.constructor` member access (opens source in a new tab) npm:@enspirit/elo Crit severityDatabaseC26 GitHub Advisory Database