VULNERABILITY INTELLIGENCE

CVE-2026-81701

CVSS score9.8 CRITICAL
EPSS probability0.43%
CISA KEVNot currently listed
Published2026-08-27
Last modified2026-09-01
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

openssl_encrypt versions before 1.4.9 use a denylist to identify trusted built-in plugins, allowing unsigned plugins in top-level plugins/ directories and unknown subdirectories to bypass signature verification. Attackers can place malicious unsigned plugins following documented installation paths to achieve arbitrary code execution in the CLI process with access to passwords and cryptographic keys.

Weakness classification

  • disclosure@vulncheck.com: CWE-347

Primary references