CVE-2026-8629

Crabbox < v0.12.0 Privilege Escalation via Agent Ticket Endpoints

Assigner: VulnCheck
Reserved: 14.05.2026 Published: 14.05.2026 Updated: 14.05.2026

Crabbox prior to v0.12.0 contains a privilege escalation vulnerability that allows users with shared visibility-only access to obtain Code, WebVNC, and Egress agent tickets by sending POST requests to ticket endpoints. Attackers can exploit insufficient access control checks on the /v1/leases/:id/code/ticket, /v1/leases/:id/webvnc/ticket, and /v1/leases/:id/egress/ticket endpoints to obtain bridge-agent tickets and impersonate trusted lease-side bridges despite having only visibility permissions.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS Score: 8.6

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS Score: 8.1

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	Low	Integrity Impact	High
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	openclaw
Product	crabbox
Versions	Default: affected affected from 0 to 0.12.0 (excl.) Version 95cb30dc7dbaa1fef690a42ef6ac1cb6e307a191 is unaffected

Vendor

openclaw

Product

crabbox

Versions

Default: affected

affected from 0 to 0.12.0 (excl.)
Version 95cb30dc7dbaa1fef690a42ef6ac1cb6e307a191 is unaffected

Credits

Chia Min Jun Lennon finder

References

Problem Types