Vulnerability · Published Mar 11, 2026 · Assigned by GitHub_M

CVE-2026-31889Shopware has a potential take over of app credentials

High 8.9

In plain English

A high-severity authentication bypass by spoofing in core from shopware. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.9High
Exploit odds (30 days)0.3%top 76.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Shopware is an open commerce platform. Prior to 6.6.10.15 and 6.7.8.1, a vulnerability in the Shopware app registration flow that could, under specific conditions, allow attackers to take over the communication channel between a shop and an app. The legacy app registration flow used HMAC‑based authentication without sufficiently binding a shop installation to its original domain. During re‑registration, the shop-url could be updated without proving control over the previously registered shop or domain. This made targeted hijacking of app communication feasible if an attacker possessed the relevant app‑side secret. By abusing app re‑registration, an attacker could redirect app traffic to an attacker‑controlled domain and potentially obtain API credentials intended for the legitimate shop. This vulnerability is fixed in 6.6.10.15 and 6.7.8.1.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Packagistshopware/core6.7.8.1GHSA-c4p7-rwrg-pf6p
Packagistshopware/core6.6.10.15GHSA-c4p7-rwrg-pf6p
Packagistshopware/platform6.7.8.1GHSA-c4p7-rwrg-pf6p
Packagistshopware/platform6.6.10.15GHSA-c4p7-rwrg-pf6p

Affected products (as reported)

VendorProductVersions
shopware core >= 6.7.0.0, < 6.7.8.1< 6.6.10.15
shopware platform >= 6.7.0.0, < 6.7.8.1< 6.6.10.15

Weakness: CWE-290 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L

References