CVE-2026-109561

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.

CVSS 4.0

2.3CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

4.2CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N

EPSS

0.2% chance of exploitation in the next 30 days; higher than 9% of CVEs (scores of 2026-10-25)

CWE

CWE-863

Published

2026-10-12

Modified

2026-10-16

Record from

the NVD, synced 2026-10-19

References

• https://github.com/aaif-goose/goose
• https://github.com/aaif-goose/goose/blob/v1.43.0/crates/goose/src/permission/permission_inspector.rs#L159
• https://github.com/aaif-goose/goose/commit/b0f4e2a0f1a5507aa0a0fbe73d0b5c77a3e86845
• https://github.com/aaif-goose/goose/pull/10528
• https://github.com/aaif-goose/goose/releases/tag/v1.44.0

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