CVE-2026-81720 - openssl_encrypt before 1.4.9 fails to validate the memory_cost parameter from identity file protection blocks, allowing attackers to trigger out-of-memory conditions during key derivation. Attackers with write access to local identity stores can craft malicious identity files with excessive memory_cost values that cause the host to crash when unlocking identities before authentication. - 漏洞详情

漏洞编号：CVE-2026-81720

风险等级：中危

漏洞来源：CVE

CVE 编号：CVE-2026-81720

CNNVD 编号：-

厂商/产品：- / -

影响范围：-

CWE：CWE-400

发布/更新时间：2026-08-27 / 2026-08-28

漏洞描述

openssl_encrypt before 1.4.9 fails to validate the memory_cost parameter from identity file protection blocks, allowing attackers to trigger out-of-memory conditions during key derivation. Attackers with write access to local identity stores can craft malicious identity files with excessive memory_cost values that cause the host to crash when unlocking identities before authentication.

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