CVE-2021-26909: Automox Agent Guessable S3 Bucket Endpoint

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-04-23 · updated 2026-06-17
Weakness: CWE-284

Description

Automox Agent prior to version 31 uses an insufficiently protected S3 bucket endpoint for storing sensitive files, which could be brute-forced by an attacker to subvert an organization's security program. The issue has since been fixed in version 31 of the Automox Agent.

Affected products

Automox Agent: before 31 — fixed in 31

How to fix

Upgrade to a fixed version: Automox Agent 31. Check the vendor advisory for mitigations.

References

https://community.automox.com/t/cve-2021-26908-and-cve-201-26909-automox-agent-information-disclosure-vulnerabilities-fixed/1955
https://www.rapid7.com/blog/post/2021/04/13/cve-2021-26908-and-cve-2021-26909-automox-agent-information-disclosure-fixed/
https://community.automox.com/t/cve-2021-26908-and-cve-201-26909-automox-agent-information-disclosure-vulnerabilities-fixed/1955
https://www.rapid7.com/blog/post/2021/04/13/cve-2021-26908-and-cve-2021-26909-automox-agent-information-disclosure-fixed/

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