openmage/magento-lts Known Vulnerabilities & Fixes
openmage/magento-lts has 2 known security vulnerabilities in Packagist (PHP). Upgrade to version 20.18.0 or later to resolve all known issues. Data sourced from OSV, enriched with EPSS exploit probability and CISA KEV.
Low Immediate Risk
No actively exploited vulnerabilities detected. Monitor and update in your next maintenance window.
Recommended safe version: 20.18.0
Upgrading to 20.18.0 or later resolves all 2 known vulnerabilities in openmage/magento-lts. Run: composer require openmage/magento-lts:^20.18.0
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Security Summary
- 2 affected version ranges have been identified across these 2 advisories.
- 100% of known issues have a published fixed version.
- Remediation: composer update openmage/magento-lts
Vulnerabilities
2 unique vulnerabilities — sorted by exploitation risk (KEV → EPSS → CVSS). Click a CVE/GHSA ID for full details. First disclosed Apr 21, 2026, most recently May 5, 2026 (14 days apart).
| CVE / GHSA | Severity | Affected | Fixed In |
|---|---|---|---|
| CVE-2026-42155 Magento LTS has Weak API Session ID — Predictable MD5 of Time-Derived Inputs | CRITICAL | 1.9.1.1, 1.9.2.0, 1.9.2.1, 1.9.2.2 (+87 more) | 20.18.0 |
| CVE-2026-40488 OpenMage LTS: Customer File Upload Extension Blocklist Bypass → Remote Code Execution | HIGH | 1.9.1.1, 1.9.2.0, 1.9.2.1, 1.9.2.2 (+86 more) | 20.17.0 |
About This Data
Vulnerability data for openmage/magento-lts is sourced from the Open Source Vulnerability (OSV) database, aggregating reports from GitHub Advisory Database, NIST NVD, and ecosystem-specific sources.
CVSS (Common Vulnerability Scoring System) scores reflect exploitability and impact. EPSS (Exploit Prediction Scoring System) scores indicate the probability of exploitation within the next 30 days. Vulnerabilities marked with are listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
Related Packagist (PHP) Packages
Other packages in this ecosystem, ranked by shared vulnerabilities where available.
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