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CVE-2026-28468· NVD / CVE Program· CNA VulnCheck

OpenClaw 2026.1.29-beta.1 < 2026.2.14 - Authentication Bypass in Sandbox Browser Bridge Server

OpenClaw versions 2026.1.29-beta.1 prior to 2026.2.14 contain a vulnerability in the sandbox browser bridge server in which it accepts requests without requiring gateway authentication, allowing local attackers to access browser control endpoints. A local attacker can enumerate tabs, retrieve WebSocket URLs, execute JavaScript, and exfiltrate cookies and session data from authenticated browser contexts.

HighCVSS 8.5 · v4.0—No exploit Fix available
Published
Mar 5, 2026
Updated
Jun 17, 2026
EPSS
0.2% · 11th percentile
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Report tools

JSON

Action score

34

Monitor

Low priority for now.

CVSS
34 / 40 · 8.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · VulnCheck
8.5
NVD has not scored this yet; the score shown is the CNA’s.

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Noroxi analysis

No Noroxi analysis for this record yet

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Affected systems

VendorProduct
openclawopenclaw

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • openclaw openclaw2026.1.29 and later · before 2026.2.14

Versions reported by the vendor

Affected version ranges reported by the assigning authority (VulnCheck). Independent of NVD's CPE analysis and usually ahead of it.

  • OpenClaw OpenClaw

    • 2026.1.29-beta.1 and later · before 2026.2.14affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
npmopenclawfrom 2026.1.29-beta.1 · before 2026.2.142026.2.14

Same product

openclaw: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-25253OpenClaw (aka clawdbot or Moltbot) before 2026.1.29 obtains a gatewayUrl value from a query string and automatically makes a WebSocket conne
    42Plan
  • CVE-2026-30741A remote code execution (RCE) vulnerability in OpenClaw Agent Platform v2026.2.6 allows attackers to execute arbitrary code via a Request-Si
    39Monitor
  • CVE-2026-43534OpenClaw < 2026.4.10 - Unsanitized External Input in Agent Hook Events
    37Monitor
  • CVE-2026-33579OpenClaw < 2026.3.28 - Privilege Escalation via Missing Caller Scope Validation in Device Pair Approval
    37Monitor
  • CVE-2026-32917OpenClaw < 2026.3.13 - Remote Command Injection via Unsanitized iMessage Attachment Paths in SCP
    37Monitor
  • CVE-2026-32987OpenClaw < 2026.3.13 - Bootstrap Setup Code Replay via Device Pairing
    37Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
npm:openclaw2026.2.14Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-284720 days apartOpenClaw < 2026.2.2 - Device Identity Check Bypass in Gateway WebSocket Connect Handshake
    36Monitor
  • CVE-2026-3206415 days apartOpenClaw < 2026.2.21 - Missing VNC Authentication in Sandbox Browser noVNC Observer
    34Monitor
  • CVE-2026-284500 days apartOpenClaw < 2026.2.12 - Unauthenticated Profile Tampering via Nostr Plugin HTTP Endpoints
    33Monitor
  • CVE-2026-296130 days apartOpenClaw < 2026.2.12 - Webhook Authentication Bypass via Loopback remoteAddress Trust
    32Monitor
  • CVE-2026-284850 days apartOpenClaw 2026.1.5 < 2026.2.12 - Missing Authentication in Browser Control HTTP Endpoints
    30Monitor
  • CVE-2026-3204114 days apartOpenClaw < 2026.3.1 - Unauthenticated Browser Control Access via Failed Auth Bootstrap
    30Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

  • CVE-2026-284660 days apartOpenClaw < 2026.2.14 - Remote Code Execution via Node Invoke Approval Bypass
    37Monitor
  • CVE-2026-284560 days apartOpenClaw 2026.1.5 < 2026.2.14 - Arbitrary Code Execution via Unsafe Hook Module Path Handling
    34Monitor
  • CVE-2026-283930 days apartOpenClaw 2.0.0-beta3 < 2026.2.14 - Arbitrary JavaScript Module Loading via Hook Transform Path Traversal
    33Monitor
  • CVE-2026-284590 days apartOpenClaw < 2026.2.12 - Arbitrary File Write via Untrusted sessionFile Path
    28Monitor

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability
Attack vector
Local
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
X

Weakness class (CWE)

CWE-306 · Missing Authentication for Critical Function

CVSS 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

nvd-secondary

Root cause

A function added for development or support ships to production without authentication. It often relies on the assumption that it is “only reachable from the internal network.”

The bug in code

The whole CWE-306 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
// Added for the support teamapp.post("/maintenance/reset", resetDevice);

Fixed

ts
if (config.maintenanceEnabled) {  app.post(    "/maintenance/reset",    requireSession, requireRole("admin"), resetDevice  );}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records