CVE-2026-81704 - 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. - 漏洞详情

漏洞编号：CVE-2026-81704

风险等级：高危

漏洞来源：CVE

CVE 编号：CVE-2026-81704

CNNVD 编号：-

厂商/产品：- / -

影响范围：-

CWE：CWE-916

发布/更新时间：2026-08-27 / 2026-08-27

漏洞描述

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.

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