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CVE-2026-31888— Shopware has user enumeration via distinct error codes on Store API login endpoint

Quick assessment

Affected
shopware core
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Shopware是德国Shopware公司的一套开源电子商务软件。 Shopware 6.7.8.1之前版本和6.6.10.15之前版本存在安全漏洞，该漏洞源于登录端点返回不同的错误代码，可能导致枚举有效客户账户。

CVSS 5.3 · Medium EPSS 0.34% · P26

Possible ATT&CK Techniques 1 AI

T1087 · Account Discovery
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I. Basic Information for CVE-2026-31888

Vulnerability Information
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Vulnerability Title
Shopware has user enumeration via distinct error codes on Store API login endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
响应差异性信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Shopware 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Shopware是德国Shopware公司的一套开源电子商务软件。 Shopware 6.7.8.1之前版本和6.6.10.15之前版本存在安全漏洞，该漏洞源于登录端点返回不同的错误代码，可能导致枚举有效客户账户。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
shopware core >= 6.7.0.0, < 6.7.8.1 -
shopware platform >= 6.7.0.0, < 6.7.8.1 -

II. Public POCs for CVE-2026-31888

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III. Intelligence Information for CVE-2026-31888

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Vendor Advisories for CVE-2026-31888 (1)

Same Patch Batch · shopware · 2026-03-11 · 3 CVEs total

CVE-2026-31889 8.9 HIGH Shopware has a potential take over of app credentials
CVE-2026-31887 Shopware unauthenticated data extraction possible through store-api.order endpoint

IV. Related Vulnerabilities

Same product: core
Same vendor: shopware
Same weakness: CWE-204

V. Comments for CVE-2026-31888

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