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.
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-639"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/8xxx/CVE-2026-8629.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "0.12.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"original_tag": "v0.12.0",
"range": [
{
"fixed": "2e842f89e5d7679a3726527b36f18692d4e6e155"
}
],
"source": "REFERENCES_TAG"
},
{
"range": [
{
"fixed": "95cb30dc7dbaa1fef690a42ef6ac1cb6e307a191"
}
],
"source": "REFERENCES_COMMIT"
}
]
}