Medium severity5.3NVD Advisory· Published Jun 21, 2026· Updated Jun 24, 2026
CVE-2026-56316
CVE-2026-56316
Description
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.
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Affected products
2Patches
Vulnerability mechanics
References
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