CVE-2026-11931
MEDIUMInsecure Permissions on Authentication Token Cache File in Kiro IDE
Title source: cnaDescription
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.
References (2)
Core 2
Core References
Release Notes release-notes
https://kiro.dev/changelog/ide/0-11/#patch-0-11-133
Vendor Advisory vendor-advisory
https://aws.amazon.com/security/security-bulletins/2026-045-aws/
Scores
CVSS v3
5.5
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-276
Status
published
Products (1)
AWS/Kiro IDE
< 0.11.133
Published
Jun 15, 2026
Tracked Since
Jun 16, 2026