CVE-2026-74889EPSS p26.1%

CVE-2026-74889CVE-2026-74889

jahlives / openssl_encrypt

Description

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.

Scoring

CVSS 9.8 ()
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.35% probability of exploitation · percentile 26.1% · 2026-10-05T12:00:23Z
Last modified2026-09-01
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.