PT-2026-51406 · Cap Go · Cap-Go

Judel777 · Publicado 2026-06-22 · Atualizado 2026-06-22 · CVE-2026-56280

NVD

CVSS v3.1

7.1

Alta

Vetor base

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

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.

Correção

Missing Authorization

Enumeração de Fraquezas

CWE-862

Identificadores relacionados

CVE-2026-56280

Produtos afetados

Cap-Go

Referências · 3

• https://github.com/Cap-go/capgo/security/advisories/GHSA-95g7-xwwx-j737 · Aviso do Fabricante
• https://vulncheck.com/advisories/cap-go-privilege-inversion-in-build-log-stream-via-sse-disconnect · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-56280 · Nota de Segurança