CVE-2026-31889Network attack vector

App API credential theft via domain re-registration

Published Mar 11, 2026 · Updated Mar 11, 2026

Authentication bypass in Shopware before 6.6.10.15 and 6.7.0.0 through 6.7.8.0 allows remote attackers to obtain app API credentials. The legacy app re-registration flow accepts a changed shop-url after validating only the app secret, without binding the installation to its original domain or requiring the existing shop secret. Exploitation requires an app-side secret and redirects app traffic to an attacker-controlled domain, enabling interception, data tampering, and theft of the shop's integration credentials.

CVSS severity8.9
High
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Shopware before 6.6.10.15 and 6.7.0.0 through 6.7.8.0 allows remote attackers to obtain app API credentials. The legacy app re-registration flow accepts a changed shop-url after validating only the app secret, without binding the installation to its original domain or requiring the existing shop secret. Exploitation requires an app-side secret and redirects app traffic to an attacker-controlled domain, enabling interception, data tampering, and theft of the shop's integration credentials.

The record

CVE
CVE-2026-31889
Published
Mar 11, 2026
Updated
Mar 11, 2026
Vendor
Shopware
Product
Shopware
Classifications
CWE-290, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 6.6.10.15
  2. Affected versionversion=>= 6.7.0.0, < 6.7.8.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Shopware · Shopwareversion=< 6.6.10.15; version=>= 6.7.0.0, < 6.7.8.1
Shopware · Shopware Coreversion=< 6.6.10.15; version=>= 6.7.0.0, < 6.7.8.1

Published CVSS scores

8.9GitHubCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-290Authentication Bypass by Spoofing
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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