Code Injection Vulnerability in Elo Ruby Backend
CVE-2026-44266

9.8CRITICAL

Key Information:

Vendor

Enspirit

Status
Elo
Vendor
CVE Published:
3 November 2026

What is CVE-2026-44266?

Elo, a functional expression language for no-code tools, contains a code injection vulnerability in its Ruby backend prior to version 1.0.1. An attacker can exploit this flaw because the system embeds unescaped, user-controlled text into Ruby double-quoted strings. As a consequence, certain entry points such as the /try playground allow execution of arbitrary Ruby code and shell commands through backticks. The vulnerability specifically affects Ruby emissions while JavaScript, Python, and SQL emissions remain untouched. This issue has been resolved in version 1.0.1.

Affected Version(s)

elo < 1.0.1

References

https://github.com/enspirit/elo/security/advisories/GHSA-...
x_refsource_CONFIRM
https://github.com/enspirit/elo/commit/51b869963fbe445c18...
x_refsource_MISC
https://github.com/enspirit/elo/commit/d2a89a8db76a244eb7...
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.