CVE-2026-32265 Amazon S3 for Craft CMS has an Information Disclosure vulnerability

Medium 6.9 Published Updated

Unauthenticated users can view a list of accessible Amazon S3 buckets via an exposed endpoint in the Craft CMS plugin.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-32265?

CVE-2026-32265 is a medium-severity vulnerability in craftcms aws-s3, published on 18 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Amazon S3 for Craft CMS plugin provides an Amazon S3 integration for Craft CMS. In versions 2.0.2 through 2.2.4, unauthenticated users can view a list of buckets the plugin has access to. The `BucketsController->actionLoadBucketData()` endpoint allows unauthenticated users with a valid CSRF token to view a list of buckets that the plugin is allowed to see. Users should update to version 2.2.5 of the plugin to mitigate the issue.

Weakness: CWE-200

Which versions are affected by CVE-2026-32265?

2 open source packages ship an affected version, including craftcms/aws-s3.

PackageAffectedFixed in
craftcms/aws-s3 PackagistFrom 2.0.22.2.5
craftcms/aws-s3 PackagistFrom 2.0.22.2.5

How do I fix CVE-2026-32265?

Upgrade craftcms/aws-s3 to 2.2.5 or later.

Is CVE-2026-32265 being exploited?

There is no known exploitation of CVE-2026-32265 in the wild and no public exploit code.

Sources

Also known as GHSA-hwj7-4vgc-j3v9.

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