CVE-2026-74895

CRITICAL 9.8

openssl_encrypt before 1.4.0 Plugin Sandbox Bypass via Process Isolation

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

openssl_encrypt versions before 1.4.0 fail to apply sandbox restrictions in the default process isolation mode for plugin execution. Attackers can execute malicious plugins with unrestricted access to the filesystem, network, subprocess execution, and all Python modules.

CWE	CWE-693
Vendor	jahlives
Product	openssl_encrypt
Published	Aug 17, 2026

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CVSS v3 Breakdown

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

Affected Versions

jahlives / openssl_encrypt

0 < 1.4.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-623h-chj7-hfx8 vulncheck.com: https://www.vulncheck.com/advisories/openssl-encrypt-before-plugin-sandbox-bypass-via-process-isolation