CVE-2026-56231

Capgo before 12.128.2 contains a broken object level authorization (BOLA) vulnerability in the POST /build/start/:jobId and POST /build/cancel/:jobId endpoints. The handlers authorize the request based only on the attacker-controlled app_id supplied in the request body and never verify that the jobId in the URL belongs to that app_id (or the same tenant/org) before issuing privileged builder commands with the server-held builder API key. An authenticated user with the app.build_native permission for any app they control can start or cancel arbitrary builder jobs belonging to other tenants by supplying a victim jobId, resulting in cross-tenant build sabotage (denial of service), unauthorized compute actions, and potential billing impact.

CVSS v3 7.6 HIGH

7.6^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/Cap-go/capgo/security/advisories/GHSA-72j4-9qp5-hfrg
https://www.vulncheck.com/advisories/capgo-broken-object-level-authorization-in-build-job-control-via-jobid-parameter
https://github.com/Cap-go/capgo/security/advisories/GHSA-72j4-9qp5-hfrg

Configurations

No configuration.

History

25 Jun 2026, 14:16

Type	Values Removed	Values Added
References	~~() https://github.com/Cap-go/capgo/security/advisories/GHSA-72j4-9qp5-hfrg -~~	() https://github.com/Cap-go/capgo/security/advisories/GHSA-72j4-9qp5-hfrg -

24 Jun 2026, 13:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-24 13:16

Updated : 2026-06-25 14:16

NVD link : CVE-2026-56231

Mitre link : CVE-2026-56231

CVE.ORG link : CVE-2026-56231

JSON object : View

Products Affected

No product.

CWE

CWE-285

Improper Authorization

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