What is CVE-2026-74889?

CVE-2026-74889 is a critical-severity vulnerability in Jahlives OpenSSL Encrypt, classified under Inadequate Encryption Strength. CVSS score: 9.8/10. Published 2026-08-17.

How severe is CVE-2026-74889?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Jahlives OpenSSL Encrypt

CVE-2026-74889

openssl_encrypt versions before 1.4.0 use HKDF with no salt and static info parameter in key normalization functions, reducing entropy extraction and determinism. Attackers can exploit predictable key derivation with identical inputs to weaken cryptographic security against multi-target attacks.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Jahlives Openssl_encrypt — versions 0, 1.4.0

Weakness classification (CWE)

CWE-326 — Inadequate Encryption Strength

References

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

Frequently asked questions

What is CVE-2026-74889?: CVE-2026-74889 is a critical-severity vulnerability in Jahlives OpenSSL Encrypt, classified under Inadequate Encryption Strength. CVSS score: 9.8/10. Published 2026-08-17.
How severe is CVE-2026-74889?: Critical severity. CVSS v3 base score is 9.8 out of 10.