CVE-2026-74895 openssl_encrypt before 1.4.0 Plugin Sandbox Bypass via Process Isolation

Critical 9.3 Published 17 Aug 2026 Updated 1 Oct 2026

Attackers can bypass sandbox restrictions in openssl_encrypt to execute malicious plugins with unrestricted system access.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2026-74895?

CVE-2026-74895 is a critical vulnerability in Jahlives Openssl Encrypt, published on 17 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-693

Which versions are affected by CVE-2026-74895?

1 open source package ship an affected version, including openssl-encrypt. It affects 1 product.

Package	Affected	Fixed in
`openssl-encrypt` PyPI	All versions	`1.4.0`

Products include Jahlives Openssl Encrypt.

How do I fix CVE-2026-74895?

Upgrade openssl-encrypt to 1.4.0 or later.

Is CVE-2026-74895 being exploited?

There is no known exploitation of CVE-2026-74895 in the wild and no public exploit code.

All Jahlives Openssl Encrypt vulnerabilities

Sources

Also known as GHSA-562w-22q6-g455, GHSA-623h-chj7-hfx8, PYSEC-2026-3770.