CVE-2021-41581

x509_constraints_parse_mailbox in lib/libcrypto/x509/x509_constraints.c in LibreSSL through 3.4.0 has a stack-based buffer over-read. When the input exceeds DOMAIN_PART_MAX_LEN, the buffer lacks '\0' termination.

• CWE-125

• https://github.com/libressl-portable/openbsd/issues/126Exploit, Issue Tracking, Patch, Third Party Advisory
• https://github.com/libressl-portable/openbsd/issues/126Exploit, Issue Tracking, Patch, Third Party Advisory

Published

Sep 24, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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