CVE-2026-13769 – Insecure file permissions in AWS CLI
Bulletin ID: 2026-049-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 07/01/2026 11:45 AM PDT Description: The AWS Command Line Interface (AWS CLI) is a unified tool for managing AWS services from the command line. We identified CVE-2026-13769 in AWS CLI on Unix-like systems where the umask has not been configured to restrict file permissions (the default on most systems) wrote credential and configuration files with world-readable permissions, which allows other local users on the same host to read credentials. Impacted versions: <=1.44.77 (v1) AND <=2.34.28 (v2) Please refer to the article below for the most up-to-date and complete information related to this AWS Security Bulletin.
CSIRTS triage
- What
- The AWS CLI has insecure file permissions that allow local users to read credentials.
- Who is affected
- Unix-like system deployments of AWS CLI versions 1.44.77 and 2.34.28 or earlier.
- Urgency
- Remediation is important due to potential exposure of sensitive credentials.
- Action
- Configure umask to restrict file permissions or upgrade to a secure version.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://aws.amazon.com/security/security-bulletins/rss/2026-049-aws/
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-137690.10% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-13769 | coverage & exploitation status | NVD · CVE.org |
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