Auth bypass in Openclaw
CVE-2026-100537
OpenClaw (npm package 'openclaw') before 2026.8.1 fails to apply the originating requester's effective tool policy during Active Memory automatic recall. In deployments that use Active Memory together with requester-specific tool rules, deterministic and hidden recall paths can retrieve durable memory and inject it into the agent's context even when toolsBySender explicitly denies that requester access to the memory tools (memory_search, memory_get). As a result, an admitted but denied sender can receive information derived from durable memory in the agent's response without directly invoking any memory tool. The issue is fixed in 2026.8.1.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.002 (8.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 8.4% 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-wjfv-5qch-m5vj) (vendor-advisory)
- VulnCheck Advisory: OpenClaw before 2026.8.1 Authentication Bypass via Active Memory (third-party-advisory)
Frequently asked questions
- What is CVE-2026-100537?
- CVE-2026-100537 is a low-severity vulnerability in Openclaw, classified under Missing Authorization. CVSS score: 3.1/10. Published 2026-09-26.
- How severe is CVE-2026-100537?
- Low severity. CVSS v3 base score is 3.1 out of 10.