Vulnerability in Openclaw
CVE-2026-100547
OpenClaw is a coding agent distributed as the npm package `openclaw`. In affected versions (2026.7.1 through 2026.7.2), alternate but valid `file:` URL spellings supplied over the Agent Client Protocol (ACP) were treated as relative paths and were incorrectly classified as reads scoped to the session working directory. When an operator connected `openclaw acp client` to an untrusted or compromised ACP peer, that peer could request a read of a file outside the session working directory without the approval prompt normally required for that path, resulting in disclosure of local file contents. The demonstrated impact is limited to file confidentiality; mutating and command-capable tool classes are not affected. This issue is fixed in OpenClaw 2026.8.1.
Published .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
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-356g-m7rx-7pm3 (vendor-advisory)
- www.vulncheck.com/advisories/openclaw-before-2026.8.1-authentication-bypass-via… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-100547?
- CVE-2026-100547 is a medium-severity vulnerability in Openclaw, classified under CWE-180. CVSS score: 5.5/10. Published 2026-09-26.
- How severe is CVE-2026-100547?
- Medium severity. CVSS v3 base score is 5.5 out of 10.