AIKIDO-2026-10940

TL;DR

When poetry publish --build runs, a failing build step does not stop the publish flow in affected versions. If older wheels or sdists are already present in the configured dist/ directory, Poetry continues and uploads those stale artifacts to the target repository. Maintainers and CI pipelines that rely on --build to publish freshly built output can therefore release unintended package contents, breaking artifact integrity for downstream consumers. The fix propagates the build command exit code and aborts publishing when the build fails.