freemarker vulnerabilities and fixes
Recent CVEs affecting freemarker, with upgrade or downgrade steps. 1 tracked.
freemarker has 1 tracked vulnerability, 1 critical. A fixed release or vendor patch exists for 1. Most recent: 2026-09-10. Highest priority: CVE-2026-84939 (score 56/100).
- CVE-2026-84939 CRITICAL 9.1 UPGRADE Path traversal vulnerability in Apache FreeMarker template loading mechanism, if the attacker can specify an a
FAQ
How do I fix freemarker vulnerabilities?
Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.
Is freemarker being exploited right now?
None of the tracked freemarker CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which freemarker CVE should I patch first?
CVE-2026-84939 currently ranks highest (56/100): Path traversal vulnerability in Apache FreeMarker template loading mechanism, if the attacker can specify an a.