cvedb.io
CVE-2026-56280
HIGH · CVSS 7.1
EPSS exploitation probability: 17%
Published 2026-06-22T22:16:51.197 · Last modified 2026-06-24T19:17:13.437

Summary

Cap-go before 12.128.2 contains a privilege inversion vulnerability in GET /build/logs/:jobId that allows read-only API key holders to cancel running native builds. The endpoint registers an abort listener on the SSE stream that unconditionally invokes cancelBuildOnDisconnect() using the privileged server-side BUILDER_API_KEY when clients disconnect, bypassing the app.build_native permission check required by the explicit POST /build/cancel/:jobId endpoint. Attackers with read-only API keys can repeatedly disrupt native build operations and CI/CD workflows by opening the log stream and dropping the connection.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.