CVE-2026-32064
OpenClaw versions prior to 2026.2.21 sandbox browser entrypoint launches x11vnc without authentication for noVNC observer sessions, allowing unauthenticated access to the VNC interface.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.51%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
OpenClaw versions prior to 2026.2.21 sandbox browser entrypoint launches x11vnc without authentication for noVNC observer sessions, allowing unauthenticated access to the VNC interface. Remote attackers on the host loopback interface can connect to the exposed noVNC port to observe or interact with the sandbox browser without credentials.
- CVSS 4.0
- 8.5 HIGHCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.51% probability · 42th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-306
- Affected
- openclaw/openclaw
- Source
- disclosure@vulncheck.com
References
- https://github.com/openclaw/openclaw/commit/621d8e1312482f122f18c43c72c67211b141da01Patch
- https://github.com/openclaw/openclaw/commit/8c1518f0f3e0533593cd2dec3a46c9b746753661Patch
- https://github.com/openclaw/openclaw/security/advisories/GHSA-25gx-x37c-7pphMitigation, Vendor Advisory
- https://www.vulncheck.com/advisories/openclaw-missing-vnc-authentication-in-sandbox-browser-novnc-observerThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.