ZeusQA
Start free

Vulnerability record

CVE-2026-128049

criticalCVSS 4.0 9.4EPSS 0.23%Published · OpenMage

The short answer

CVE-2026-128049 affects OpenMage magento-lts and is rated critical (CVSS 9.4). It is not in CISA's KEV catalog; EPSS puts the chance of exploitation in the next 30 days at 0.23%.

What it is

OpenMage Magento LTS before 20.18.2 and 21.0.0-beta1 before 21.0.0-beta3 contains a cross-site request forgery vulnerability in the admin and storefront OAuth confirm and confirmSimple actions, which accept GET requests without form-key validation. Attackers holding OAuth consumer credentials can lure a logged-in administrator or customer to a crafted confirm URL that authorizes the attacker's request token, then exchange it at /oauth/token for a persistent REST API access token bound to the victim.

Weakness: CWE-352.

Severity

9.4 critical

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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

0.23%

Higher than 13% of scored CVEs

How it can be exploited

Attack vector
Network
Attack complexity
Low
Attack requirements
None
Privileges required
Low
User interaction
Passive
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-2026-128049 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog as of 2026-11-13. FIRST's EPSS estimates a 0.23% chance of exploitation in the next 30 days.

How do I fix CVE-2026-128049?

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: Deferred. The description is NVD's text, quoted as published.

Related

Know the day a CVE lands in your code

Connect a GitHub repository and ZeusQA checks its dependencies daily, briefs each advisory and opens the fix. Three test runs free, no card.

Start freeSee how a run works