CVE-2026-11526

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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/lstein/Perl-GD/commit/67b163713c6c78dfeb693da0978ae934e5cd8210.patch
https://metacpan.org/release/RURBAN/GD-2.86/changes
http://www.openwall.com/lists/oss-security/2026/06/14/4
https://lists.debian.org/debian-lts-announce/2026/06/msg00027.html

Configurations

No configuration.

History

No history.

Information

Published : 2026-06-14 12:16

Updated : 2026-07-23 10:10

NVD link : CVE-2026-11526

Mitre link : CVE-2026-11526

CVE.ORG link : CVE-2026-11526

JSON object : View

Products Affected

No product.

CWE

CWE-73

External Control of File Name or Path

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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