CVE-2026-128049: OpenMage magento-lts · Cross-Site Request Forgery (CSRF)
Affects OpenMage magento-ltsSource CVE Database V5
Not known to be exploited · CVSS 9.4 Critical : upgrade to 20.18.2 as a priority.
Data as of 13 Nov 2026, 09:57 UTC
Thin evidence
One scorer or none| CNA (VulnCheck) | CVSS 4.0 | 9.4 |
|---|---|---|
| CNA (VulnCheck) | CVSS 3.1 | 9.0 |
- Patch
- Available – fixed in 20.18.2, 21.0.0-beta3
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:HExploitation evidence
Disclosed: evidence found.
CVE published 13 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.
What to do
Upgrade magento-lts to 20.18.2; magento-lts to 21.0.0-beta3; openmage/magento-lts to 21.0.0-beta3 or 20.18.2.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| OpenMagemagento-lts | Affected
| Fixed in
|
| OpenMagemagento-lts | Affected
| Fixed in
|
GitHubopenmage/magento-ltspkg:github/openmage/magento-ltsOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade OpenMage Magento LTS to version 20.18.2 or later, or 21.0.0-beta3 or later, where this vulnerability is fixed. No other mitigations are indicated by the vendor advisory.
Description
CVE-2026-128049 is a critical cross-site request forgery (CSRF) vulnerability in OpenMage Magento LTS versions before 20.18.2 and 21.0.0-beta3. The flaw exists in the admin and storefront OAuth confirm and confirmSimple actions, which accept GET requests without form-key validation. An attacker with OAuth consumer credentials can trick a logged-in administrator or customer into authorizing the attacker's request token, enabling the attacker to obtain a persistent REST API access token bound to the victim.
References
- github.com/OpenMage/magento-lts/security/advisories/GHSA-grrq-9gq2-vm55 (opens in a new tab)
- github.com/OpenMage/magento-lts/commit/1f83e49b60e08aa7ba89dcc2d41ea21f62c0b796 (opens in a new tab)
- vulncheck.com/advisories/openmage-magento-lts-before-20.18.2-csrf-via-oauth-authorization-confirm (opens in a new tab)