Rubylouvre · Avalon · CVE-2026-12209
**Name of the Vulnerable Software and Affected Versions**
RubyLouvre avalon versions prior to 2.2.11
**Description**
A flaw exists in the Template Filter Handler component within the file `src/filters/index.js`. An unknown function in this file allows for prototype pollution, which is the improperly controlled modification of object prototype attributes. This issue can be exploited remotely.
**Recommendations**
At the moment, there is no information about a newer version that contains a fix for this vulnerability.