CVE-2026-109561

LOW
INFO Priority: 0.00 BB Relevance: 55/100
Published: 2026-10-12 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Passive
AT: Present
VC: Low
VI: Low
VA: None

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 Classification (1)

Bug Bounty Relevance

55 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

2.3 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

EPSS — Exploitation Probability

0.19%
Raw Score 0.001950
Percentile 9.2%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00195
2026-10-28
0.00195

Intelligence Sources

mitre ref →
nvd ref →