CVE-2026-58459 gpsd gpsprof Command Injection via gnuplot plot title subtype field

High 8.4 Published Updated

Attackers can execute arbitrary shell commands by injecting payloads into GPS device subtype fields processed by gpsprof and gnuplot.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2026-58459?

CVE-2026-58459 is a high-severity command injection vulnerability in ntpsec gpsd, published on 9 Jul 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

gpsd through release-3.27.5, fixed at commit 4c06658, contains a command injection vulnerability in gpsprof that allows attackers who control the GPS device subtype value to execute arbitrary shell commands by embedding backtick payloads in the gnuplot plot title without proper escaping. The subtype field sourced from a DEVICES JSON log entry or NMEA PGRMT sentence is written into a generated gnuplot program via a set title statement with only double-quote characters escaped, enabling arbitrary shell command execution as the user running gnuplot when the victim renders the generated plot through the gpsprof and gnuplot workflow.

Weakness: CWE-78

Which versions are affected by CVE-2026-58459?

It affects 1 product.

Linux distribution packages (20)
gpsd AlmaLinux:10All versions1:3.26.1-3.el10_2.1
gpsd-clients AlmaLinux:10All versions1:3.26.1-3.el10_2.1
python3-gpsd AlmaLinux:10All versions1:3.26.1-3.el10_2.1
gpsd-minimal AlmaLinux:9All versions1:3.26.1-2.el9_8.1
gpsd-minimal-clients AlmaLinux:9All versions1:3.26.1-2.el9_8.1
gpsd Red Hat:enterprise_linux:10.2All versions1:3.26.1-3.el10_2.1
gpsd-clients Red Hat:enterprise_linux:10.2All versions1:3.26.1-3.el10_2.1
gpsd-clients-debuginfo Red Hat:enterprise_linux:10.2All versions1:3.26.1-3.el10_2.1
gpsd-debuginfo Red Hat:enterprise_linux:10.2All versions1:3.26.1-3.el10_2.1
gpsd-debugsource Red Hat:enterprise_linux:10.2All versions1:3.26.1-3.el10_2.1
python3-gpsd Red Hat:enterprise_linux:10.2All versions1:3.26.1-3.el10_2.1
python3-gpsd-debuginfo Red Hat:enterprise_linux:10.2All versions1:3.26.1-3.el10_2.1
gpsd-minimal Red Hat:enterprise_linux:9::appstreamAll versions1:3.26.1-2.el9_8.1
gpsd-minimal-clients Red Hat:enterprise_linux:9::appstreamAll versions1:3.26.1-2.el9_8.1
gpsd-minimal-clients-debuginfo Red Hat:enterprise_linux:9::appstreamAll versions1:3.26.1-2.el9_8.1
gpsd-minimal-debuginfo Red Hat:enterprise_linux:9::appstreamAll versions1:3.26.1-2.el9_8.1
gpsd-minimal-debugsource Red Hat:enterprise_linux:9::appstreamAll versions1:3.26.1-2.el9_8.1
gpsd Rocky Linux:10All versions1:3.26.1-3.el10_2.1
gpsd-minimal Rocky Linux:9All versions1:3.26.1-2.el9_8.1
gpsd openSUSE:TumbleweedAll versions3.27.5-3.1

Products include Gpsd Project Gpsd.

How do I fix CVE-2026-58459?

Apply the vendor's patch.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-58459 being exploited?

There is no known exploitation of CVE-2026-58459 in the wild and no public exploit code.

Sources

Also known as ALSA-2026:51075, ALSA-2026:51153, CLSA-2026-1786360070, CLSA-2026-1786447733, DEBIAN-CVE-2026-58459, GHSA-2hhc-4hqc-4mg8 and 7 more.

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