CVE-2026-109561 goose from 1.28.0 before 1.44.0 Manual Approval Bypass via Read-Only Tool Annotations
Attackers can bypass manual approval requirements in goose AI agent by exploiting stale read-only annotations, allowing unauthorized tool execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-109561?
CVE-2026-109561 is a low-severity vulnerability in aaif-goose goose, published on 12 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
goose from 1.28.0 before 1.44.0 contains an authorization bypass vulnerability that allows tools to run without user approval in Manual Approval mode because persisted read-only annotations are never cleared by update_goose_mode. After a session uses Smart Approval mode, prompt-injected calls to tools annotated readOnlyHint: true execute without prompting, bypassing the user's selected approval mode in PermissionInspector::inspect.
Weakness: CWE-863
Which versions are affected by CVE-2026-109561?
How do I fix CVE-2026-109561?
No fix has been published for CVE-2026-109561 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-109561 being exploited?
There is no known exploitation of CVE-2026-109561 in the wild and no public exploit code.
Sources
Also known as GHSA-8h69-7j5q-pwfc.