🛡️ CVE-2026-11526 on Alpine — perl-gd

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Distribution advisory

This page covers CVE-2026-11526 as tracked by Alpine, for the package perl-gd. The fix is available in version 2.86-r0; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

ALPINE-CVE-2026-11526 is classified as CWE-73: External Control of File Name or Path. A caller can influence which file the application opens or writes, extending an operation to files that were never meant to be reachable.

Affected software

ALPINE-CVE-2026-11526 is recorded against 1 package.

  • perl-gd (fixed in 2.86-r0)

Timeline and source

Published on 14 June 2026 and last revised on 16 June 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

security.alpinelinux.org (Advisory)

CVE-2026-11526 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-06-14
Updated 2026-08-11
Modified 2026-06-16
Fix URL N/A

Affected Packages

Software From version Fixed in
perl-gd — 2.86-r0

Similar Threats

Exploit Protection

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ALPINE-CVE-2026-11526 carries CVSS 9.8 Critical rating. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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