CVE-2026-8721
CRITICAL EPSS 35.7%
Published May 17, 20261mo ago · Modified Jun 17, 20262w ago
9.8 CVSS 3.1
Published May 17, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High
Threat Intelligence
EPSS Exploit Probability
35.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-170
References 2
- openwall.com http://www.openwall.com/lists/oss-security/2026/05/17/6
- metacpan.org https://metacpan.org/release/JONASBN/Crypt-OpenSSL-PKCS12-1.95/view/Changes.md
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.