PT-2026-76625 · Pecl · Openssl-Encrypt
CVE-2026-74889
·
Published
2026-08-17
·
Updated
2026-08-17
CVSS v3.1
9.8
Critical
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
openssl encrypt versions prior to 1.4.0
Description
Key normalization functions use HKDF (HMAC-based Extract-and-Expand Key Derivation Function) without a salt and with a static info parameter. This reduces entropy extraction and determinism, allowing attackers to exploit predictable key derivation when identical inputs are used, which weakens cryptographic security against multi-target attacks.
Recommendations
Update openssl encrypt to version 1.4.0 or later.
Exploit
Fix
Inadequate Encryption Strength
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Weakness Enumeration
Related Identifiers
Affected Products
Openssl-Encrypt