Auth bypass in Openclaw
CVE-2026-100539
OpenClaw (npm package 'openclaw') before 2026.8.1 fails to revoke memory tool access when an operator hot-disables memory configuration. Existing memory_search and memory_get tool instances retain the enabled configuration captured at creation time because the execution-time resolver treats explicit disablement like an unavailable configuration snapshot and restores the stale authority. As a result, during an already-running agent turn the model can continue searching and reading durable memory after the operator revoked that access, for the remainder of that run. Exploitation requires memory to be disabled while a previously created memory tool remains active. The issue is fixed in 2026.8.1.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 2.6 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.002 (10.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 10.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
Weakness classification (CWE)
References
- GitHub Security Advisory (GHSA-chr6-w4m5-57fv) (vendor-advisory)
- VulnCheck Advisory: OpenClaw before 2026.8.1 Memory Access Control Bypass (third-party-advisory)
Frequently asked questions
- What is CVE-2026-100539?
- CVE-2026-100539 is a low-severity vulnerability in Openclaw, classified under Incorrect Authorization. CVSS score: 2.6/10. Published 2026-09-26.
- How severe is CVE-2026-100539?
- Low severity. CVSS v3 base score is 2.6 out of 10.