CVE-2026-81704
Published:August 27, 2026
Updated:September 24, 2026
openssl_encrypt versions before 1.4.9 contain a weak key derivation vulnerability in the D-Bus CryptoService.EncryptFile handler that uses unstretched SHA-256 instead of Argon2id. Attackers can perform offline password guessing against encrypted files roughly six to seven orders of magnitude faster than documented protection by exploiting the missing key stretching and hash rounds.
Affected Packages
https://github.com/jahlives/openssl_encrypt.git (GITHUB):
Affected version(s) >=v1.0.0 <v1.4.9Fix Suggestion:
Update to version v1.4.9openssl-encrypt (PYTHON):
Affected version(s) >=0.2.2 <1.4.9Fix Suggestion:
Update to version 1.4.9Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Use of Password Hash With Insufficient Computational Effort
EPSS
Base Score:
0.20