CVE-2026-31888
MEDIUM
GHSA-gqc5-xv7m-gcjq
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Lifecycle Timeline
3Description
Shopware is an open commerce platform. Prior to 6.7.8.1 and 6.6.10.15, the Store API login endpoint (POST /store-api/account/login) returns different error codes depending on whether the submitted email address belongs to a registered customer (CHECKOUT__CUSTOMER_AUTH_BAD_CREDENTIALS) or is unknown (CHECKOUT__CUSTOMER_NOT_FOUND). The "not found" response also echoes the probed email address. This allows an unauthenticated attacker to enumerate valid customer accounts. The storefront login controller correctly unifies both error paths, but the Store API does not - indicating an inconsistent defense. This vulnerability is fixed in 6.7.8.1 and 6.6.10.15.
Analysis
Shopware's Store API login endpoint (POST /store-api/account/login) leaks information about registered customer accounts by returning distinct error messages and echoing email addresses based on whether credentials belong to known users, enabling unauthenticated attackers to enumerate valid customer accounts. The vulnerability affects versions prior to 6.7.8.1 and 6.6.10.15, while the storefront login controller properly mitigates this issue, indicating inconsistent security controls. …
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Remediation
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.
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