CVE-2026-81699 - openssl_encrypt versions before 1.4.9 fail to properly validate key derivation function costs in crafted files, allowing attackers to trigger unbounded memory and CPU exhaustion during pre-authentication processing. Attackers can supply malicious files with excessive KDF parameters to exhaust system resources and crash or wedge the process before password verification occurs. - 漏洞详情

漏洞编号：CVE-2026-81699

风险等级：高危

漏洞来源：CVE

CVE 编号：CVE-2026-81699

CNNVD 编号：-

厂商/产品：- / -

影响范围：-

CWE：CWE-770

发布/更新时间：2026-08-27 / 2026-08-27

漏洞描述

openssl_encrypt versions before 1.4.9 fail to properly validate key derivation function costs in crafted files, allowing attackers to trigger unbounded memory and CPU exhaustion during pre-authentication processing. Attackers can supply malicious files with excessive KDF parameters to exhaust system resources and crash or wedge the process before password verification occurs.

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