VULNERABILITY INTELLIGENCE
CVE-2026-56316
CVSS score5.3 MEDIUM
EPSS probability0.31%
CISA KEVNot currently listed
Published2026-06-21
Last modified2026-10-25
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
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.
Weakness classification
- disclosure@vulncheck.com: CWE-203