Is CVE-2026-27009 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2026-27009, but active exploitation has not been confirmed.

Can CVE-2026-27009 be exploited remotely?

No. CVE-2026-27009 requires local access to exploit.

What is the CVSS score of CVE-2026-27009?

CVE-2026-27009 has a CVSS score of 5.8 (MEDIUM) and an EPSS exploitation probability of 0.02%.

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MEDIUMPOC

CVE-2026-27009

CWE-79Published: February 20, 2026· Updated: Feb 20, 2026

5.8

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:5.1th

Official Description

OpenClaw is a personal AI assistant. Prior to version 2026.2.15, a atored XSS issue in the OpenClaw Control UI when rendering assistant identity (name/avatar) into an inline `<script>` tag without script-context-safe escaping. A crafted value containing `</script>` could break out of the script tag and execute attacker-controlled JavaScript in the Control UI origin. Version 2026.2.15 removed inline script injection and serve bootstrap config from a JSON endpoint and added a restrictive Content Security Policy for the Control UI (`script-src 'self'`, no inline scripts).

NVD Source

Technical Analysis

CVE-2026-27009 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 5.8.

A proof-of-concept (PoC) exploit exists for CVE-2026-27009. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.