Overly permissive file permissions in AWS CLI before 1.44.78 (v1) and 2.34.29 (v2) on Unix-like systems where the umask has not been configured to restrict file permissions (the default on most systems) may allow other local users on the same host to read credentials written by certain CLI subcommands (aws codeartifact login, aws iam create-virtual-mfa-device, aws deploy register). To remediate this issue, users should upgrade to AWS CLI 1.44.78 (v1) or 2.34.29 (v2) or later.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://aws.amazon.com/security/security-bulletins/2026-049-aws/ Vendor Advisory
- https://github.com/aws/aws-cli/security/advisories/GHSA-wfp6-f47h-hxc3 Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 6.8 · amazonNVD modified 2026-10-23 17:36
Affected (CPE criteria) 1
cpe:2.3:a:amazon:aws_command_line_interface:*:*:*:*:*:*:*:*
References 4
- https://aws.amazon.com/security/security-bulletins/2026-049-aws/ Vendor Advisory
- https://github.com/aws/aws-cli/releases/tag/1.44.78 Release Notes
- https://github.com/aws/aws-cli/releases/tag/2.34.29 Release Notes
- https://github.com/aws/aws-cli/security/advisories/GHSA-wfp6-f47h-hxc3 Vendor Advisory