CVE-2026-13769Medium· 5.5▾ SunlitAWS CLI: Overly permissive File Permissions
▾ Sunlit zone — Low / medium · no exploitation signal
impact 30.3 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 30.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
0.1%
Last analysed / modified upstream
0.1% → 0.2%
The AWS Command Line Interface (AWS CLI) is a unified tool for managing AWS services from the command line. Certain CLI subcommands wrote credential and configuration files with world-readable permissions on Unix-like systems with a default umask, allowing other local users on the same host to read credentials.
On Unix-like systems with a default umask, the following AWS CLI subcommands wrote credential or configuration files with world-readable permissions (0644) instead of owner-only (0600):
aws codeartifact login
aws iam create-virtual-mfa-device
aws deploy register
Any other local user on the same host could read these files and obtain the credentials.
Impacted versions: <=1.44.77 (v1) AND <=2.34.28 (v2)
This issue has been addressed in AWS CLI v1 version 1.44.78 and AWS CLI v2 version 2.34.29. We recommend upgrading to the latest version and ensuring any forked or derivative code is patched to incorporate the new fixes.
If you have any questions or comments about this advisory, we ask that you contact AWS Security via our vulnerability reporting page or directly via email to [email protected]. Please do not create a public GitHub issue.
awscli < 1.44.78Upgrade to a patched release:
awscli 1.44.78Connected by shared product, vendor, weakness, or advisory.
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CVE-2018-1000226Critical· 9.8Cobbler Improper Validation of Security Tokens
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CVE-2025-54546High· 7.5On affected platforms, restricted users could use SSH port forwarding to access host-internal services
CVE-2025-54545High· 7.8On affected platforms, a restricted user could break out of the CLI sandbox to the system shell and elevate their privileges.