CVE-2026-32064: Openclaw OpenClaw's Andbox Browser NoVNC Observer Vulnerability

HIGH
Advisory Identifier: GHSA-25gx-x37c-7pph
CVSS 7.7
CWE-287 CWE-862
Published
Advisory Summary

CVE-2026-32064 is a HIGH (CVSS 7.7) openclaw's andbox browser novnc observer vulnerability (CWE-287: Improper Authentication) affecting Openclaw libraries in the npm ecosystem. The issue involves openclaw's andbox browser novnc observer lacked vnc authentication. Remediation is available by upgrading affected packages to version 2026.2.21.

CVE-2026-32064 at a Glance

CVE Identifier CVE-2026-32064
GHSA Identifier GHSA-25gx-x37c-7pph
Severity HIGH
CVSS v3.1 Base Score 7.7
CWE Classification CWE-287: Improper Authentication
Affected Product Openclaw
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 7.7

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2026-32064

To remediate this vulnerability, upgrade all affected Openclaw dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

openclaw fixed: 2026.2.21
npm install openclaw@2026.2.21
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release:

npm ls openclaw

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2026-32064, inspect your project dependencies using npm:

npm ls openclaw

Analyze the terminal output to locate any version of Openclaw in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2026.2.21), your application is affected.

Note: The npm ls openclaw command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-287: Improper Authentication, where when an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. In Openclaw, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

CVE-2026-32064 Affected Openclaw Versions

1 component(s)
Fixed Versions:
2026.2.21
Product / Package Ecosystem Affected Versions Fixed Version
openclaw
npm
< 2026.2.21
2026.2.21

References

Frequently Asked Questions

What is CVE-2026-32064?
CVE-2026-32064 is a security vulnerability in Openclaw involving OpenClaw's andbox browser noVNC observer lacked VNC authentication under CWE-287: Improper Authentication.
Which Openclaw versions are affected?
Affected versions include releases prior to 2026.2.21 across affected packages: openclaw.
What version fixes CVE-2026-32064?
Upgrading to 2026.2.21 (or the latest patched release for your respective branch) resolves the vulnerability.
Is openclaw affected?
Yes, openclaw is affected in releases prior to 2026.2.21. Upgrade your dependency to 2026.2.21 or later.
What is the CVSS score of CVE-2026-32064?
CVE-2026-32064 has a CVSS v3.1 base score of 7.7 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
What CWE is associated with CVE-2026-32064?
CVE-2026-32064 is classified under CWE-287: Improper Authentication (When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.).
How can I check npm dependencies for CVE-2026-32064?
Run the dependency tree command: 'npm ls openclaw'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-25gx-x37c-7pph",
  "modified" : "2026-03-30T13:43:24Z",
  "published" : "2026-03-03T19:17:48Z",
  "aliases" : [ "CVE-2026-32064" ],
  "summary" : "OpenClaw's andbox browser noVNC observer lacked VNC authentication",
  "details" : "The sandbox browser entrypoint launched `x11vnc` without authentication (`-nopw`) for noVNC observer sessions.\n\nOpenClaw-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).\n\n## Affected Packages / Versions\n\n- Package: `docker/openclaw`\n- Affected: `<= 2026.2.19-2`\n- Patched: `>= 2026.2.21`\n\n## Technical details\n\n- `scripts/sandbox-browser-entrypoint.sh` used `x11vnc ... -nopw` for noVNC observer flow.\n- `websockify` exposed noVNC for the container listener.\n- OpenClaw runtime (`src/agents/sandbox/browser.ts`) already mapped host publish to loopback, but observer auth was missing.\n\n## Fix\n\n- Require VNC password auth in the sandbox browser entrypoint (`x11vnc -rfbauth`), replacing `-nopw`.\n- Generate per-container noVNC password in runtime and inject `OPENCLAW_BROWSER_NOVNC_PASSWORD`.\n- Emit short-lived noVNC observer token URLs instead of sharing raw noVNC passwords in shared URLs.\n- Keep loopback-only host port publish and bump sandbox browser security hash epoch.\n- Add security audit findings for sandbox browser containers that publish ports on non-loopback interfaces.\n\nOperational note: rebuild the sandbox browser image and recreate browser containers so existing containers pick up the fix.\n\n## Fix Commit(s)\n\n- `621d8e1312482f122f18c43c72c67211b141da01`\n- `8c1518f0f3e0533593cd2dec3a46c9b746753661`\n\n## Release Process Note\n\nPatched version is pre-set to the planned next release (`2026.2.21`). After npm release, this advisory can be published without further field edits.\n\nOpenClaw thanks @TerminalsandCoffee for reporting.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "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"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "openclaw"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2026.2.21"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/security/advisories/GHSA-25gx-x37c-7pph"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-32064"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/commit/621d8e1312482f122f18c43c72c67211b141da01"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/commit/8c1518f0f3e0533593cd2dec3a46c9b746753661"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/openclaw/openclaw"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/openclaw-missing-vnc-authentication-in-sandbox-browser-novnc-observer"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-287", "CWE-862" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-03T19:17:48Z",
    "nvd_published_at" : null
  }
}