OpenMage magento-lts before 20.18.2 and 21.0.0-beta pre-releases before 21.0.0-beta3 generate customer
Source GCVE Database
Not known to be exploited · CVSS 9.2 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 | 9.2 |
|---|---|---|
| CNA (VulnCheck) | CVSS 3.1 | 8.1 |
- Patch
- Available – fixed in 20.18.2, 21.0.0-beta3
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NExploitation 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.
Description
OpenMage magento-lts versions before 20.18.2 and 21.0.0-beta pre-releases before 21.0.0-beta3 use weak methods to generate customer email confirmation keys and password-reset tokens. The keys are generated using md5(uniqid()) and uniqHash(), which are not cryptographically secure. This allows unauthenticated attackers to brute-force confirmation keys via an unrate-limited endpoint, potentially logging in as pending customers or predicting administrator reset tokens after recovering the generator state.
References
- github.com/OpenMage/magento-lts/security/advisories/GHSA-7j66-6mw7-rgfx (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-128047 (opens in a new tab)
- github.com/OpenMage/magento-lts/commit/4a8d91c692524de4a07e70af5367b6cb67a9516d (opens in a new tab)
- github.com/OpenMage/magento-lts/commit/9f5a1c3cf63f5cf6ac9f90b041a97a474cea04c2 (opens in a new tab)
- vulncheck.com/advisories/openmage-magento-lts-before-20.18.2-account-takeover-via-predictable-confirmation-key (opens in a new tab)