CVE-2026-56316 (GCVE-0-2026-56316)
Vulnerability from cvelistv5 – Published: 2026-06-21 13:26 – Updated: 2026-06-24 17:56
VLAI
EPSS
VEX
Title
Cap-go - Job Existence Oracle via Unauthenticated OPTIONS /build/upload/:jobId/*
Summary
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.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-24 17:56 UTC
CWE
- CWE-203 - Observable Discrepancy
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/Cap-go/capgo/security/advisori… | vendor-advisory |
| https://www.vulncheck.com/advisories/cap-go-job-e… | third-party-advisory |
Impacted products
Date Public
2026-03-03 00:00
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