CVE-2026-2646
High · 8.1CVSS
8.1
EPSS
0.2%
Published
Mar 19, 2026
CISA due date
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The record
A heap-buffer-overflow vulnerability exists in wolfSSL's 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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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