CVE-2026-55368 | h2o Access-Log Formatter buffer overflow

November 5, 2026 Yanac

A vulnerability, which was classified as critical, was found in h2o. This vulnerability affects unknown code of the component Access-Log Formatter. Such manipulation leads to buffer overflow.

This vulnerability is listed as CVE-2026-55368. The attack may be performed from remote. There is no available exploit.

A patch should be applied to remediate this issue.VulDB Recent EntriesRead More