CVE-2026-8629Public exploitNetwork attack vector

Privilege escalation via visibility-only ticket minting

Published May 14, 2026 · Updated May 14, 2026

Authorization bypass in Crabbox before 0.12.0 allows remote authenticated users to impersonate trusted lease-side bridges. The Code, WebVNC, and Egress ticket handlers in worker/src/fleet.ts resolve leases with visibility-only authorization and mint bridge-agent tickets without requiring manage access. A valid account or token with use access to an enabled shared lease is sufficient to replace bridge state and compromise its traffic.

CVSS severity8.6
High
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in Crabbox before 0.12.0 allows remote authenticated users to impersonate trusted lease-side bridges. The Code, WebVNC, and Egress ticket handlers in worker/src/fleet.ts resolve leases with visibility-only authorization and mint bridge-agent tickets without requiring manage access. A valid account or token with use access to an enabled shared lease is sufficient to replace bridge state and compromise its traffic.

The record

CVE
CVE-2026-8629
Published
May 14, 2026
Updated
May 14, 2026
Vendor
OpenClaw Foundation
Product
Crabbox
Classifications
CWE-639, T1078
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 14, 2026CVE publishedPublication date reported by the CVE source.
  2. May 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <0.12.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenClaw Foundation · Crabboxversion=0 <0.12.0

Published CVSS scores

8.6VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
8.1VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1078Valid Accounts

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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