CVE-2026-124848 Incorrect default permissions on session transcripts and prompt history in Kiro CLI
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-124848?
CVE-2026-124848 is a medium-severity vulnerability in Amazon Kiro CLI, published on 10 Nov 2026.
Official description
Incorrect default file permissions in Kiro CLI (formerly Amazon Q Developer CLI) before version 2.27.0 on macOS and Linux might allow other local users on the same host to read a user's session transcripts and prompt history, including any credentials or source code they contain. The CLI created its local session storage files with permissions that made them readable by all local users.
To remediate this issue, users should upgrade to Kiro CLI version 2.27.0 or later and launch it once. Users who ran Amazon Q Developer CLI 1.16.0 through 1.19.x should also delete the ~/.aws/amazonq/.cli_bash_history file or restrict it to the owner.
Weakness: CWE-276
Which versions are affected by CVE-2026-124848?
How do I fix CVE-2026-124848?
No fix has been published for CVE-2026-124848 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-124848 being exploited?
There is no known exploitation of CVE-2026-124848 in the wild and no public exploit code.
Sources
Also known as GHSA-9857-5m9p-q7m3.