GHSA-gfmx-pph7-g46x OpenClaw: Lower-trust background runtime output is injected into trusted `System:` events, and local async exec completion misses the intended `exec-event` downgrade

• npm openclaw: < 2026.4.8 → fixed in 2026.4.8

Impact Lower-trust background runtime output is injected into trusted `System:` events, and local async exec completion misses the intended `exec-event` downgrade. Lower-trust runtime/background output could be promoted into trusted System events, allowing prompt-injection into later agent turns. OpenClaw is a user-controlled local assistant. This advisory is scoped to the OpenClaw trust model and does not assume a multi-tenant service boundary. Affected Packages / Versions • Package: `openclaw` (npm) • Affected versions: `<= 2026.4.2` • Patched versions: `2026.4.8` Fix The issue was fixed on `main` and is available in the patched npm version listed above. The verified fixed tree is commit `d7c3210cd6f5fdfdc1beff4c9541673e814354d5`. Verification The fix was re-checked against `main` before publication, including targeted regression tests for the affected security boundary. Credits Thanks @tdjackey for reporting.