CVE-2026-74890
Medium · 5.5CVSS
5.5
EPSS
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Published
Aug 17, 2026
CISA due date
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The record
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 packages
| Ecosystem | Package | Introduced | Fixed |
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