Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-25gx-x37c-7pph
Advisory ID github_osv/GHSA-25gx-x37c-7pph
Aliases CVE-2026-32064
Summary OpenClaw's andbox browser noVNC observer lacked VNC authentication The sandbox browser entrypoint launched `x11vnc` without authentication (`-nopw`) for noVNC observer sessions. OpenClaw-managed runtime flow publishes the noVNC port to host loopback only (`127.0.0.1`), so default exposure is local to the host unless operators explicitly expose the port more broadly (or run the image standalone with broad port publishing). ## Affected Packages / Versions - Package: `docker/openclaw` - Affected: `<= 2026.2.19-2` - Patched: `>= 2026.2.21` ## Technical details - `scripts/sandbox-browser-entrypoint.sh` used `x11vnc ... -nopw` for noVNC observer flow. - `websockify` exposed noVNC for the container listener. - OpenClaw runtime (`src/agents/sandbox/browser.ts`) already mapped host publish to loopback, but observer auth was missing. ## Fix - Require VNC password auth in the sandbox browser entrypoint (`x11vnc -rfbauth`), replacing `-nopw`. - Generate per-container noVNC password in runtime and inject `OPENCLAW_BROWSER_NOVNC_PASSWORD`. - Emit short-lived noVNC observer token URLs instead of sharing raw noVNC passwords in shared URLs. - Keep loopback-only host port publish and bump sandbox browser security hash epoch. - Add security audit findings for sandbox browser containers that publish ports on non-loopback interfaces. Operational note: rebuild the sandbox browser image and recreate browser containers so existing containers pick up the fix. ## Fix Commit(s) - `621d8e1312482f122f18c43c72c67211b141da01` - `8c1518f0f3e0533593cd2dec3a46c9b746753661` ## Release Process Note Patched version is pre-set to the planned next release (`2026.2.21`). After npm release, this advisory can be published without further field edits. OpenClaw thanks @TerminalsandCoffee for reporting.
Status Published
Exploitability 0.5
Weighted Severity 7.7
Risk 3.9
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (2)
CWE-287 Improper Authentication
CWE-862 Missing Authorization
System Score Found at
cvssv3.1 7.7 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-25gx-x37c-7pph/GHSA-25gx-x37c-7pph.json
cvssv4 8.5 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-25gx-x37c-7pph/GHSA-25gx-x37c-7pph.json
generic_textual HIGH
Reference id Reference type URL
https://github.com/openclaw/openclaw
621d8e1312482f122f18c43c72c67211b141da01 Other https://github.com/openclaw/openclaw/commit/621d8e1312482f122f18c43c72c67211b141da01
8c1518f0f3e0533593cd2dec3a46c9b746753661 Other https://github.com/openclaw/openclaw/commit/8c1518f0f3e0533593cd2dec3a46c9b746753661
CVE-2026-32064 https://nvd.nist.gov/vuln/detail/CVE-2026-32064
GHSA-25gx-x37c-7pph Advisory https://github.com/openclaw/openclaw/security/advisories/GHSA-25gx-x37c-7pph
openclaw-missing-vnc-authentication-in-sandbox-browser-novnc-observer Advisory https://www.vulncheck.com/advisories/openclaw-missing-vnc-authentication-in-sandbox-browser-novnc-observer
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-25gx-x37c-7pph/GHSA-25gx-x37c-7pph.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-25gx-x37c-7pph/GHSA-25gx-x37c-7pph.json
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-03-23T17:27:59Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/32xxx/CVE-2026-32064.json

Source Advisory: vulnrichment/CVE-2026-32064

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'no'},
 {'Technical Impact': 'total'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]