| Component | OpenClaw |
| Severity | medium (CVSS 5.3) |
| CVSS vector | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N |
| Published (NVD) | 2026-09-26 |
| Last modified | 2026-09-29 |
| Affected versions | < 2026.8.1 read from the advisory text: NVD has not published CPE data yet |
| Fixed in | 2026.8.1 |
| Weakness | CWE-863 |
| CISA KEV | not listed |
NVD description
OpenClaw (npm package `openclaw`) before 2026.8.1 incorrectly enforces sender tool policies during session-memory filename generation. In affected versions, filename generation created an embedded helper that retained tools which the originating sender's policy had removed. When session-memory filename generation was enabled for an agent reachable by lower-trust senders, model-mediated instructions could cause the helper to invoke tools outside that sender's effective policy; the demonstrated impact was the creation of persistent scheduled work. Exploitability depends on the model acting on the injected instruction and on which tools the helper exposes. The issue is fixed in 2026.8.1; as a workaround, disable session-memory filename generation for agents reachable by lower-trust senders.
What to do
- Upgrade OpenClaw to
2026.8.1or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-100545
- https://github.com/openclaw/openclaw/security/advisories/GHSA-5fwv-rrvp-8xvr
- https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-policy-bypass-via-session-filename-generation
Read more
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