CVE-2026-74890: jahlives openssl_encrypt

CVSS 9.3 (critical) · published 2026-08-17

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.

Affected products (NVD): jahlives openssl_encrypt

Fixed in (NVD): 1.4.0

Weakness: CWE-345

Source: NVD CVE-2026-74890

References

• https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-rvc2-5jxq-gpcj
• https://www.vulncheck.com/advisories/openssl-encrypt-before-hmac-authentication-bypass-via-environment-variable

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