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CVE PROGRAM SOURCE RECORD8.7 High

CVE-2026-81721

openssl_encrypt before 1.4.9 Denial of Service via KDF

Description

openssl_encrypt before 1.4.9 fails to validate KDF cost parameters in encrypted file metadata and keystore headers, allowing attackers to trigger unbounded memory allocation. Attackers can craft malicious encrypted files declaring arbitrarily large Argon2, scrypt, or balloon KDF parameters to exhaust system memory and crash the process without authentication.

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 < 1.4.9affected
  • 1.4.9unaffected
pkg:pypi/openssl_encrypt

References