CVE-2026-8721

Description

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.

Predictions

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

References

• https://metacpan.org/release/JONASBN/Crypt-OpenSSL-PKCS12-1.95/view/Changes.md
• http://www.openwall.com/lists/oss-security/2026/05/17/6
• https://security-tracker.debian.org/tracker/CVE-2026-8721

CWEs

CWE-170