CVE-2026-48011 Shopware: Timing-attack on admin panel allowing enumeration of administrator usernames

Low 3.7 Published Updated

Attackers can enumerate administrator usernames via timing attacks, exposing sensitive account information in Shopware e-commerce platforms.

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

What is CVE-2026-48011?

CVE-2026-48011 is a low-severity vulnerability in shopware, published on 10 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Shopware is an open commerce platform. Prior to versions 6.6.10.18 and 6.7.10.1, an attacker is able to enumerate the usernames of administrator users by performing a timing attack. Versions 6.6.10.18 and 6.7.10.1 fix the issue.

Weakness: CWE-208

Which versions are affected by CVE-2026-48011?

8 open source packages ship an affected version, including shopware/core and shopware/platform.

PackageAffectedFixed in
shopware/core PackagistAll versions6.6.10.18
shopware/core PackagistAll versions6.6.10.18
shopware/core PackagistFrom 6.7.0.06.7.10.1
shopware/core PackagistFrom 6.7.0.06.7.10.1
shopware/platform PackagistAll versions6.6.10.18
shopware/platform PackagistAll versions6.6.10.18
2 more packages
shopware/platform PackagistFrom 6.7.0.06.7.10.1
shopware/platform PackagistFrom 6.7.0.06.7.10.1

How do I fix CVE-2026-48011?

Upgrade shopware/core to a fixed version for your release line: 6.6.10.18 or 6.7.10.1.

Is CVE-2026-48011 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-48011 exists.

Sources

Also known as GHSA-7w52-7jvm-m9vw.

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