CVE-2026-81701

CriticalCVSS 9.8/10Last modified Sep 1, 2026

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Aug 27, 2026
Last modified
Sep 1, 2026
NVD status
Analyzed

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CVE-2026-81701: Critical severity, CVSS 9.8 | Vulnix