RCE in Openclaw
CVE-2026-100559
OpenClaw versions before 2026.8.1 contain a command parser vulnerability where escaped newlines confuse exec allowlist parsing, allowing hidden commands to execute. Attackers can craft input with escaped newlines to bypass allowlist validation and execute additional commands without expected authorization prompts.
Vulnerability class: Command Injection (OS Command Injection)
Published .
CVSS v3 metric
CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-9f86-pvv5-rxfw (vendor-advisory)
- www.vulncheck.com/advisories/openclaw-before-2026.8.1-command-injection-via-esc… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-100559?
- CVE-2026-100559 is a high-severity vulnerability in Openclaw, classified under OS Command Injection. CVSS score: 8.0/10. Published 2026-09-26.
- How severe is CVE-2026-100559?
- High severity. CVSS v3 base score is 8.0 out of 10.