OpenMage Magento LTS before 20.18.2 and 21.0.0-beta1 before 21.0.0-beta3 contains a cross-site request forgery
Source GCVE Database
Not known to be exploited · CVSS 9.4 Critical : upgrade to 20.18.2 as a priority.
Data as of 13 Nov 2026, 13:38 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
A fix is available in OpenMage Magento LTS versions 20.18.2 and 21.0.0-beta3 and later. Users should upgrade to these fixed versions to remediate the vulnerability. No vendor advisory content was provided to indicate alternative mitigations or temporary workarounds.
Description
OpenMage Magento LTS versions before 20.18.2 and 21.0.0-beta1 before 21.0.0-beta3 have a critical cross-site request forgery (CSRF) vulnerability in the admin and storefront OAuth confirm actions. These actions accept GET requests without form-key validation, allowing attackers with OAuth consumer credentials to trick logged-in administrators or customers into authorizing malicious OAuth tokens. This can lead to persistent REST API access tokens bound to the victim.
References
- github.com/OpenMage/magento-lts/security/advisories/GHSA-grrq-9gq2-vm55 (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-128049 (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)