High severity · published Sep 26, 2026
CVE-2026-100559
OpenClaw before 2026.8.1 Command Injection via Escaped Newlines
8.0
CVSS
0.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 16% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
OpenClaw · OpenClaw
before 2026.8.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-100559
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-100559
vendor-advisory
https://github.com/openclaw/openclaw/security/advisories/GHSA-9f86-pvv5-rxfw
third-party-advisory
https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-command-injection-via-escaped-newlines
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