CVE-2026-18374 - Passing an effectively empty string to the `,ccs=` syntax extension of the mode argument in the `fopen` function in the GNU C Library version 2.45 or earlier may result in a heap buffer overflow when the mode string input to the function is attacker controlled. This usage pattern is not seen in applications in common GNU/Linux distributions and applications that process user-supplied values for `ccs` should not pass them through without validation. - 漏洞详情

漏洞编号：CVE-2026-18374

风险等级：中危

漏洞来源：CVE

CVE 编号：CVE-2026-18374

CNNVD 编号：-

厂商/产品：- / -

影响范围：-

CWE：CWE-787

发布/更新时间：2026-08-27 / 2026-08-28

漏洞描述

Passing an effectively empty string to the `,ccs=` syntax extension of the mode argument in the `fopen` function in the GNU C Library version 2.45 or earlier may result in a heap buffer overflow when the mode string input to the function is attacker controlled.

This usage pattern is not seen in applications in common GNU/Linux distributions and applications that process user-supplied values for `ccs` should not pass them through without validation.

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