Security Advisory
CVE-2026-2646
CVE vulnerability detail — eXtreme Datacenter Security Operations
Description
A heap-buffer-overflow vulnerability exists in wolfSSLs wolfSSL_d2i_SSL_SESSION() function. When deserializing session data with SESSION_CERTS enabled, certificate and session id lengths are read from an untrusted input without bounds validation, allowing an attacker to overflow fixed-size buffers and corrupt heap memory. A maliciously crafted session would need to be loaded from an external source to trigger this vulnerability. Internal sessions were not vulnerable.