What is CVE-2026-74890?

CVE-2026-74890 is a medium-severity vulnerability in Jahlives OpenSSL Encrypt, classified under Insufficient Verification of Data Authenticity. CVSS score: 5.5/10. Published 2026-08-17.

How severe is CVE-2026-74890?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Jahlives OpenSSL Encrypt

CVE-2026-74890

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.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

Affected products

Jahlives Openssl_encrypt — versions 0, 1.4.0

Weakness classification (CWE)

CWE-345 — Insufficient Verification of Data Authenticity

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-74890?: CVE-2026-74890 is a medium-severity vulnerability in Jahlives OpenSSL Encrypt, classified under Insufficient Verification of Data Authenticity. CVSS score: 5.5/10. Published 2026-08-17.
How severe is CVE-2026-74890?: Medium severity. CVSS v3 base score is 5.5 out of 10.