CVE-2026-53429

Missing Release of Memory after Effective Lifetime vulnerability in leandrocp mdex and mdexnative allows an attacker who controls a rendered document to cause a denial of service through unbounded native memory exhaustion. The native rendering code permanently leaks memory when rendering a docume...

CVE-2026-53426: Allocation of Resources Without Limits or Throttling

Allocation of Resources Without Limits or Throttling vulnerability in leandrocp MDEx allows Excessive Allocation. MDEx.parsedocument/2 accepts a :json, json source. In lib/mdex.ex, the private jsontonode/1 function passes the attacker-controlled nodetype value to Module.concat/1, which calls...