What is the CVSS score of CVE-2026-31888?

CVE-2026-31888 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N. EPSS exploitation probability: 0.0%.

Which versions of Shopware are affected by CVE-2026-31888?

Organizations using Shopware should be aware of moderate risk from CVE-2026-31888 rated CVSS 5.3. Exploitation could compromise the security of affected deployments.. A patch is available.

How to fix or mitigate CVE-2026-31888?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Shopware CVE-2026-31888

MEDIUM

Observable Response Discrepancy (CWE-204)

2026-03-11 security-advisories@github.com

GHSA-gqc5-xv7m-gcjq

Information Disclosure

5.3

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

5.3 MEDIUM

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

Patch released

Mar 31, 2026 - 21:13 nvd

Patch available

Analysis Generated

Mar 12, 2026 - 22:07 vuln.today

CVE Published

Mar 11, 2026 - 19:16 nvd

MEDIUM 5.3

DescriptionGitHub Advisory

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.

AnalysisAI

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. No patch is currently available.

Technical ContextAI

affects Shopware is an open commerce platform.. 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 contro