Auth bypass in Openclaw
CVE-2026-100535
OpenClaw (npm package 'openclaw') versions >= 2026.4.5 and < 2026.8.1 can lose the originating requester's restrictions and untrusted provenance when session-derived text is persisted to session memory. In deployments where session-memory capture and dreaming are enabled, a restricted external sender whose messages are admitted with limited tools can persist instructions that are later supplied to an unattended background (dreaming) agent holding broader file and command capabilities, allowing actions beyond the authority of the original turn and affecting files, commands, or services available to that agent. Exploitation requires the content to be captured, selected for later processing, and followed by the model. The issue is fixed in 2026.8.1.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (18.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 18.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
References
- GitHub Security Advisory (GHSA-62qm-6fjj-6g23) (vendor-advisory)
- VulnCheck Advisory: OpenClaw before 2026.8.1 Privilege Escalation via Session Memory (third-party-advisory)
Frequently asked questions
- What is CVE-2026-100535?
- CVE-2026-100535 is a high-severity vulnerability in Openclaw, classified under Incorrect Authorization. CVSS score: 7.5/10. Published 2026-09-26.
- How severe is CVE-2026-100535?
- High severity. CVSS v3 base score is 7.5 out of 10.