CVE Tools
Sign in

CVE-2026-31888

Shopware has user enumeration via distinct error codes on Store API login endpoint

Published: Mar 11, 2026Updated: Mar 16, 2026 Sources: CVE List NVD GHSACWE-204
NVD MITRE
5.3CVSSMEDIUM
EPSS Score
0.2%
Top 88.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:LI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-204

Affected Products

coreshopware
On-prem
Web & CMS Plugins / ecommerce-platform
platformshopware
On-prem
Web & CMS Plugins / ecommerce-platform
shopware/platformPackagistOSS Libraries
shopware/corePackagistOSS Libraries
shopwareshopware
On-premWeb App
Web & CMS Plugins / cms-core
shopwareoss-projectDEWeb & CMS Pluginsaka shopware platform, shopware core
packagistpackage-ecosystemOSS Libraries

Exploitability

Official Patch Available

References

https://github.com/shopware/shopware/security/advisories/GHSA-gqc5-xv7m-gcjq
github.com
https://nvd.nist.gov/vuln/detail/CVE-2026-31888
nvd.nist.gov
https://github.com/shopware/shopware
github.com

Timeline

Published
Mar 11, 2026
Last Updated
Mar 16, 2026

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2026-31888 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows