CVE-2026-11526— Reini Urban GD 输入验证错误漏洞

GD versions before 2.86 for Perl allow OS command injection and file overwrite via a 2-arg open() of filename arguments in _make_filehandle

GD versions before 2.86 for Perl allow OS command injection and file overwrite via a 2-arg open() of filename arguments in _make_filehandle. GD::Image::_make_filehandle opens a filename argument with Perl's 2-arg open(), so a filename that begins or ends with a pipe ("| cmd", "cmd |") or begins with a redirect ("> path", ">> path") is run as a command or redirect rather than opened as a file. _make_filehandle is the single open path behind every filename-accepting constructor (new, newFromPng, newFromJpeg, and the rest); the in-memory *Data variants do not open a path and are unaffected. Any caller that forwards untrusted input to one of these constructors as a pathname can run an arbitrary command or truncate a file under the process UID.

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OS命令中使用的特殊元素转义处理不恰当(OS命令注入)

Reini Urban GD 输入验证错误漏洞

Reini Urban GD是德国Reini Urban个人开发者的一款嵌入式服务器软件。 Reini Urban GD 2.86之前版本存在安全漏洞，该漏洞源于在_make_filehandle中使用2-arg open()处理文件名参数，可能导致OS命令注入和文件覆盖。

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