Is CVE-2026-58379 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-58379 being exploited in the wild.

How severe is CVE-2026-58379?

High severity, with a CVSS score of 7.3, published 3 July 2026.

Which products and versions are affected?

GNOME GIMP 3.2.1; Red Hat Red Hat Enterprise Linux 9 affected.

Is there a fix for CVE-2026-58379?

A patch was published on 2026-07-03: Upstream fix committed to GNOME GIMP repository Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-58379 attacked?

It is attacked with local access, in a network appliance.

Am I affected by CVE-2026-58379?

Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-58379: GIMP heap buffer overflow in Paint Shop Pro parser

CVE-2026-58379 · Severity: high · CVSS 7.3 · Published 2026-07-03

A security vulnerability exists in GIMP, a popular open-source image editor, specifically within its tool for opening Paint Shop Pro (PSP) files. By tricking a user into opening a specially crafted image file, an attacker could crash the application or potentially run unauthorized code on the user's computer. This flaw could lead to a loss of data, system instability, or a full compromise of the user's workstation.

Quick answers

Is CVE-2026-58379 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-58379 being exploited in the wild.
How severe is CVE-2026-58379?: High severity, with a CVSS score of 7.3, published 3 July 2026.
Which products and versions are affected?: GNOME GIMP 3.2.1; Red Hat Red Hat Enterprise Linux 9 affected.
Is there a fix for CVE-2026-58379?: A patch was published on 2026-07-03: Upstream fix committed to GNOME GIMP repository Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-58379 attacked?: It is attacked with local access, in a network appliance.
Am I affected by CVE-2026-58379?: Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A heap-based buffer overflow exists in the 'read_channel_data()' function within 'plug-ins/common/file-psp.c' of GIMP. The vulnerability is caused by an incorrect buffer size calculation for low bit-depth images (1-bit or 4-bit); while the allocation ('line_width') uses a packed bit-depth formula, the subsequent 'fread()' call attempts to read 'width' bytes (one byte per pixel). This results in a heap overwrite when the image width exceeds the packed byte count. This flaw is a variant/bypass of CVE-2026-4153, as the previous fix addressed 'read_layer_block()' but left the intermediate buffer in 'read_channel_data()' vulnerable. A patch has been developed to ensure the buffer allocation accounts for the full pixel width.

Affected products

GNOME GIMP 3.2.1
Red Hat Red Hat Enterprise Linux 9 affected

Timeline

2026-07-01: disclosed: Reported via Red Hat Bugzilla
2026-07-03: advisory: NVD and Red Hat published advisory details
2026-07-03: patched: Upstream fix committed to GNOME GIMP repository

References

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