Medium severity5.5NVD Advisory· Published Aug 17, 2026

CVE-2026-74890

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.

Affected products

Jahlives/openssl_encryptllm-fuzzy
Range: <1.4.0

Patches

Vulnerability mechanics

References

github.com/jahlives/openssl_encrypt/security/advisories/GHSA-rvc2-5jxq-gpcjnvd
www.vulncheck.com/advisories/openssl-encrypt-before-hmac-authentication-bypass-via-environment-variablenvd

News mentions

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