openssl_encrypt before 1.4.9 executes untrusted third-party plugins with insufficient controls: the plugin signature policy defaulted to WARN, so an unsigned/unverifiable non-built-in plugin was compiled and executed in the host process at import time, before the runtime sandbox is installed. The only default gate was an incomplete, bypassable AST denylist. If a user is induced to load an attacker's plugin, this results in arbitrary code execution with the privileges of the user running openssl_encrypt. Fixed in 1.4.9 by defaulting the signature policy to ENFORCE for non-built-in plugins.

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Fixes

Solution

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Workaround

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History

Thu, 27 Aug 2026 18:00:00 +0000

Type Values Removed Values Added
First Time appeared Jahlives
Jahlives openssl Encrypt
Vendors & Products Jahlives
Jahlives openssl Encrypt
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 27 Aug 2026 16:45:00 +0000

Type Values Removed Values Added
Description openssl_encrypt before 1.4.9 executes untrusted third-party plugins with insufficient controls: the plugin signature policy defaulted to WARN, so an unsigned/unverifiable non-built-in plugin was compiled and executed in the host process at import time, before the runtime sandbox is installed. The only default gate was an incomplete, bypassable AST denylist. If a user is induced to load an attacker's plugin, this results in arbitrary code execution with the privileges of the user running openssl_encrypt. Fixed in 1.4.9 by defaulting the signature policy to ENFORCE for non-built-in plugins.
Title openssl_encrypt before 1.4.9 Remote Code Execution via Plugin
Weaknesses CWE-94
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-08-27T18:28:10.008Z

Reserved: 2026-08-27T11:13:14.063Z

Link: CVE-2026-81719

cve-icon Vulnrichment

Updated: 2026-08-27T18:28:05.615Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-08-27T17:21:02.320

Modified: 2026-08-28T18:56:34.447

Link: CVE-2026-81719

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-27T18:45:04Z

Weaknesses