CVE-2026-31888 json
Shopware has user enumeration via distinct error codes on Store API login endpoint
published 7mo ago modified last mo. also EUVD-2026-11298 , GHSA-gqc5-xv7m-gcjq
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 16%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- packagist shopware/platform 6.6.10.14, 6.7.8.1
- packagist shopware/core 6.6.10.15, 6.7.8.1
- shopware shopware 6.6.10.14, 6.7.8.1
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 7mo ago
Exploit prediction
0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| GitHub | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | shopware/platform | >=6.7.0.0, <6.7.8.1 <6.6.10.14 |
6.7.8.1 6.6.10.14 |
| packagist | shopware/core | >=6.7.0.0, <6.7.8.1 <6.6.10.15 |
6.7.8.1 6.6.10.15 |
Affected products
- shopware core
- shopware platform
Classification
- Weakness
-
- CWE-204 Observable Response Discrepancy
References
-
github.com
/shopware/shopware/security/advisories/GHSA-gqc5-xv7m-gcjq
web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-31888
advisory
-
github.com
/shopware/shopware
package
Sources
- CVE List CVE-2026-31888
- GitHub Advisory GHSA-gqc5-xv7m-gcjq
- NVD CVE-2026-31888
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CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.