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Vulnerability record

CVE-2026-128047

criticalCVSS 4.0 9.2Published · OpenMage

The short answer

CVE-2026-128047 affects OpenMage magento-lts and is rated critical (CVSS 9.2). It is not in CISA's Known Exploited Vulnerabilities catalog.

What it is

OpenMage magento-lts before 20.18.2 and 21.0.0-beta pre-releases before 21.0.0-beta3 generate customer email-confirmation keys with md5(uniqid()) and customer and administrator password-reset tokens with the non-cryptographic uniqHash(). Unauthenticated attackers can brute-force the roughly 20-bit confirmation key via the unrate-limited confirmAction endpoint to log in as pending customers, or predict administrator reset tokens after recovering generator state.

Weakness: CWE-330.

Severity

9.2 critical

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Exploited (CISA KEV)

Not listed

CISA lists confirmed exploitation only

EPSS, next 30 days

No score

FIRST scores CVEs within a day of publication

How it can be exploited

Attack vector
Network
Attack complexity
High
Attack requirements
Present
Privileges required
None
User interaction
None
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Affected products

magento-lts. NVD's record lists the exact affected versions.

References

Questions

Is CVE-2026-128047 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog as of 2026-11-13.

How do I fix CVE-2026-128047?

Follow the vendor advisory in the references below. NVD lists the affected versions under its configurations.

From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Received. The description is NVD's text, quoted as published.

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