PT-2026-51226 · Cap Go · Cap-Go

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CVE-2026-56316

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Published

2026-06-21

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Updated

2026-06-24

CVSS v4.0

6.9

Medium

VectorAV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Name of the Vulnerable Software and Affected Versions Cap-go versions prior to 12.128.2
Description An information disclosure issue exists in the 'OPTIONS /build/upload/:jobId/*' endpoint. Unauthenticated attackers can enumerate valid builder job IDs by observing response discrepancies. This allows attackers to distinguish valid job IDs from invalid ones and generate sustained unauthenticated traffic, leading to resource consumption. The vulnerable variable is jobId.
Recommendations Update to version 12.128.2 or later.

Exploit

Fix

Side Channel Attack

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Weakness Enumeration

Related Identifiers

CVE-2026-56316
GHSA-9C2X-7H5X-37GM

Affected Products

Cap-Go