CVE-2026-11931CWE-276

Insecure Permissions on Authentication Token Cache File in Kiro IDE

Medium · published June 15, 2026

CVSS v4.0
6.8
EPSS
0%
Percentile
1.9
In the wild
Unconfirmed
What it is

Incorrect default permissions in Kiro IDE on macOS and Linux before version 0.11.133 could expose the authentication token cache file to other local users or processes via world-readable permissions (0644) instead of owner-restricted permissions (0600).

To remediate this issue, users should upgrade to Kiro IDE version 0.11.133 or later. After upgrading and restarting the application, the cache file permissions are automatically updated on the next token refresh. Users operating in a multi-user environment can invalidate existing tokens by reauthenticating.

The record
Technical detail
CVSS v4.0
6.8 · MEDIUM
Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00122 · 1.9th percentile
Weakness
CWE-276 · Incorrect Default Permissions
Published
2026-06-15T18:33Z
EPSS history
Timeline
  • 15 JUN 18:33Z
    Insecure Permissions on Authentication Token Cache File in Kiro IDE
    cvelistv5