CVE-2026-56316
Cap-go - Job Existence Oracle via Unauthenticated OPTIONS /build/upload/:jobId/*
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
Cap-go before 12.128.2 contains an information disclosure vulnerability in the OPTIONS /build/upload/:jobId/* endpoint that allows unauthenticated attackers to enumerate valid builder job IDs through observable response discrepancies. Attackers can probe the endpoint without authentication to distinguish valid job IDs from invalid ones and generate sustained unauthenticated traffic for resource consumption.
| CWE | CWE-203 |
| Vendor | cap-go |
| Product | capgo |
| Published | Jun 21, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
Cap-go / capgo
0 < 12.128.2
References
Credits
🔍 Judel777