CVE-2026-109561CWE-863broken-access-control

CVE-2026-109561

Medium · published October 13, 2026

CVSS v3.1
4.2
EPSS
0%
Percentile
8.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.2 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
CVSS v4.0
2.3 · 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
0.00195 · 8.7th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-10-13T01:17Z
References (6)
EPSS history
Timeline
  • 14 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 12 OCT 20:55Z
    goose from 1.28.0 before 1.44.0 Manual Approval Bypass via Read-Only Tool Annotations
    cvelistv5
  • 12 OCT 20:55Z
    goose from 1.28.0 before 1.44.0 Manual Approval Bypass via Read-Only Tool Annotations
    cvelistv5