CVE-2026-8721

critical · 9.8

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.

9.8

CVSS

0.4%

EPSS (exploit prob.)

38th

EPSS percentile

2026-05-17

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-170

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

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-8721