CVE-2025-11965: Eclipse Foundation Vert.x · Exposed Files or Directories
Affects Eclipse Foundation Vert.xSource CVE Database V5
Not known to be exploited · CVSS 6.3 Medium.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 42% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 22 Oct 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Eclipse Foundation Vert.x | Affected
| Fixed in– |
AI-suggested
- Upgrade Vert.x to a patched version once it becomes available from the Eclipse Foundation to address the StaticHandler access control flaw.
- In the interim, configure web servers or reverse proxies (e.g., Nginx, Apache) to explicitly deny access to hidden directories such as those starting with a dot (e.g., '.git', '.svn').
- Implement strict file system permissions to restrict access to sensitive directories and files on servers hosting Vert.x applications.
- Use application-level access controls to enforce authentication and authorization for sensitive resources.
- Conduct thorough code and configuration reviews to identify any inadvertent exposure of hidden directories or files.
- Monitor web server logs and application logs for unusual access patterns targeting hidden directories or files.
- Employ web application firewalls (WAFs) with rules to block requests attempting to access hidden directories.
- Educate development and operations teams about secure StaticHandler configuration and the risks of exposing hidden files or directories.
- Regularly scan deployed applications for exposed sensitive files using automated tools.
- Maintain an incident response plan to quickly address any detected unauthorized access related to this vulnerability.
Description
In Eclipse Vert.x versions [4.0.0, 4.5.21] and [5.0.0, 5.0.4], a StaticHandler configuration for restricting access to hidden files fails to restrict access to hidden directories, allowing unauthorized users to retrieve files within them (e.g. '.git/config').