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CVE PROGRAM SOURCE RECORD9.3 Critical

CVE-2026-74889

openssl_encrypt before 1.4.0 Weak Key Derivation via HKDF

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

jahlives openssl_encrypt

Default version status: unaffected

  • 0 to < 1.4.0affected
  • 1.4.0unaffected
pkg:pypi/openssl_encrypt

References