CVE-2026-81688 - openssl_encrypt versions before 1.4.9 store an unkeyed SHA-256 hash of the plaintext in the cleartext file header metadata. Attackers can read this hash without the password to confirm guessed plaintexts offline or fingerprint identical plaintexts across separately-encrypted files. - 漏洞详情

漏洞编号：CVE-2026-81688

风险等级：高危

漏洞来源：CVE

CVE 编号：CVE-2026-81688

CNNVD 编号：-

厂商/产品：- / -

影响范围：-

CWE：CWE-311

发布/更新时间：2026-08-27 / 2026-08-28

漏洞描述

openssl_encrypt versions before 1.4.9 store an unkeyed SHA-256 hash of the plaintext in the cleartext file header metadata. Attackers can read this hash without the password to confirm guessed plaintexts offline or fingerprint identical plaintexts across separately-encrypted files.

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