Vulnerability in Openclaw
CVE-2026-100598
OpenClaw (npm package openclaw) before 2026.7.1 incorrectly binds Signal approval reactions. In affected versions, a reaction intended to resolve a structured approval request could instead attach to ordinary outbound text when unrelated outbound messages and a pending approval are present in the same conversation. As a result, an approver's reaction to unrelated text could be interpreted as approving or denying a pending host action; the practical impact depends on the pending request, conversation timing, and the actions available to the OpenClaw process. The issue does not change the authority of correctly identified approvers. This is fixed in version 2026.7.1.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.001 (1.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 1.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000
Affected products
Weakness classification (CWE)
References
- GitHub Security Advisory (GHSA-r88x-r7jj-f2cf) (vendor-advisory)
- VulnCheck Advisory: OpenClaw before 2026.7.1 Approval Binding Logic Error (third-party-advisory)
Frequently asked questions
- What is CVE-2026-100598?
- CVE-2026-100598 is a high-severity vulnerability in Openclaw, classified under Origin Validation Error. CVSS score: 7.1/10. Published 2026-09-26.
- How severe is CVE-2026-100598?
- High severity. CVSS v3 base score is 7.1 out of 10.