2026 CVE Database
Every Critical and High CVE published in 2026, with the signals you need to decide what to fix first.
2 CVEs found
| CVE | Severity | Product | Weakness | EPSS | Published |
|---|---|---|---|---|---|
| CVE-2026-4858 Mattermost Server | HIGH8.0 | Mattermost Server | CWE-22 Path Traversal | 0.4% | May 21, 2026 |
| CVE-2026-3108 Mattermost Server | HIGH8.0 | Mattermost Server | CWE-150 | 0.3% | Mar 26, 2026 |
Your next credential
Earn your free CTEM certification.
Knowing the CVE is step one. Learn to scope, prioritize, validate and mobilize fixes with a free CTEM certification.
Free to takePublicly verifiable
Beginner / Practitioner / Program Leader
Explore certifications