CVE-2026-74890

Medium

Description

openssl_encrypt versions before 1.4.0 contain an authentication bypass vulnerability in CamelliaCipher that disables HMAC tag generation and verification when the PYTEST_CURRENT_TEST environment variable is set. Attackers with code execution can set this environment variable to produce unauthenticated ciphertext and bypass integrity protection on encrypted data.

SeverityMedium

CVSS5.5

Exploit probability—

ProductJahlives Openssl Encrypt

PublishedAug 17, 2026

First seenAug 17, 2026

Weakness typeCWE-345CWE-345

How to fix

Update

jahlives openssl_encrypt1.4.0 or later
openssl-encrypt1.4.0 or later

Vendor advisories

github.com/jahlives/openssl_encrypt/security/advisories/GHSA-rvc2-5jxq-gpcj

Affected products

Product	Affected versions	Fixed in
jahlives openssl_encrypt	v < 1.4.0	1.4.0
openssl-encryptPyPI	v < 1.4.0	1.4.0

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