CVE-2026-8721: Jonasbn crypt::openssl::pkcs12

Critical severity, CVSS 9.8. EPSS: 0.6% chance of exploitation in the next 30 days.

Crypt::OpenSSL::PKCS12 versions through 1.94 for Perl truncates passwords with embedded NULLs. Password parameters in PKCS12.xs are declared char *, which routes through Perl's default typemap to SvPV_nolen. The Perl length is discarded. The C code (or OpenSSL internally) calls strlen() on the buffer. Any password byte at or after the first NULL is silently dropped. Binary / KDF-derived / HMAC-derived passwords lose entropy without any warnings.

Affected products

• Jonasbn crypt::openssl::pkcs12: up to and including 1.94

Published 2026-05-17. Last modified 2026-06-17.