CVE-2026-74875 openssl_encrypt before 1.4.0 Schema Validation Bypass

Critical 9.3 Published 17 Aug 2026 Updated 8 Oct 2026

Attackers can bypass JSON schema validation in openssl_encrypt by removing the jsonschema dependency, allowing malicious metadata processing.

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

What is CVE-2026-74875?

CVE-2026-74875 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 silently skip JSON schema validation when the jsonschema library is not installed, allowing malformed metadata to be accepted. Attackers can remove the jsonschema package or supply unknown metadata format versions to bypass all schema checks and process malicious data.

Weakness: CWE-345

Which versions are affected by CVE-2026-74875?

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

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

Products include Jahlives Openssl Encrypt.

How do I fix CVE-2026-74875?

Upgrade openssl-encrypt to 1.4.0 or later.

Is CVE-2026-74875 being exploited?

There is no known exploitation of CVE-2026-74875 in the wild and no public exploit code.

All Jahlives Openssl Encrypt vulnerabilities

Sources

Also known as GHSA-425g-fjhq-5h92, GHSA-m3pp-5f32-32h9, PYSEC-2026-3755.