CVE-2026-18743
A flaw was found in popt. This vulnerability allows an attacker to provide specially crafted configuration content to a host, which, when loaded, can lead to a small memory corruption issue. This occurs because of an error in how the `poptConfigFileToString` function reallocates memory for buffers. Successful exploitation could result in heap metadata corruption, potentially causing the affected process to become unavailable (denial of service).
- Published Sep 1, 2026
- CVSS 2.5 low
- 0.1% chance of exploitation in the next 30 days (EPSS)
- A fix is available