CVE-2026-31889
Shopware re-registration flaw enables hijack of app communications.
Is CVE-2026-31889 being exploited?
Not confirmed. CVE-2026-31889 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.27% probability of exploitation in the next 30 days.
How severe is CVE-2026-31889?
CVE-2026-31889 is rated High with a CVSS score of 8.9. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-31889?
Yes. A fix has been recorded for CVE-2026-31889. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-31889 affect?
CVE-2026-31889 affects Shopware (6.x) pre-6.6.10.15 and pre-6.7.8.1. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-31889?
Upgrade to 6.6.10.15 or 6.7.8.1; verify app registration domains.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Attacker with app secret can hijack app API traffic via re-registration, redirect to attacker domain, and steal credentials.
Patch when possible
- affected>= 6.7.0.0 and < 6.7.8.1
- affected< 6.6.10.15
- affected>= 6.7.0.0 and < 6.7.8.1
- affected< 6.6.10.15
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.