Description
A flaw was found in the file-icns plugin in GIMP. When applying a decompressed mask during ICNS image processing, the plugin reads from the mask data buffer without verifying if the cursor exceeds the allocated resource size. If a crafted file contains a truncated mask resource, the icns_decompress function continues reading past the bounds of the buffer. This out-of-bounds read vulnerability results in information disclosure of heap contents, where memory contents are leaked as alpha channel pixel values, or a crash leading to a denial of service if unmapped memory is accessed.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GNOME | GIMP | 2.99.14 | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | gimp | 3.2.6-1 | — |
| Debian 13 | gimp | 3.0.4-3+deb13u10 | — |
| Debian 12 | gimp | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | gimp | No fix yet | — |
| Ubuntu 26.04 LTS | gimp | No fix yet | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 24.04 LTS | gimp | No fix yet | — |
| Ubuntu Pro 22.04 LTS | gimp | No fix yet | — |
| Ubuntu Pro 20.04 LTS | gimp | No fix yet | — |
| Ubuntu Pro 18.04 LTS | gimp | No fix yet | — |
| Ubuntu Pro 16.04 LTS | gimp | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | gimp +1 | 2:3.0.4-4.el9_8.9 | RHSA-2026:50817 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | gimp +1 | 2:3.0.4-4.el9_8.9 | ALSA-2026:50817 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | gimp | 3.2.4-3.1 | openSUSE-SU-2026:11449-1 |
| openSUSE Leap 16.0 | gimp | 3.0.8-bp160.6.1 | openSUSE-SU-2026:21521-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | gimp +1 | 2:3.0.4-4.el9_8.9 | ELSA-2026-50817 |
Advisories 6
- RHSA-2026:50817 Red Hat Security Advisory: gimp security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- WID-SEC-2026-2539 GIMP Plugins: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 5, 2026
- ALSA-2026:50817 Important: gimp security update AlmaLinux Security Advisories · Oct 29, 2026
- openSUSE-SU-2026:21521-1 Security update for gimp SUSE / openSUSE Security Updates · Aug 5, 2026
- openSUSE-SU-2026:11449-1 gimp-3.2.4-3.1 on GA media SUSE / openSUSE Security Updates · Aug 5, 2026
- ELSA-2026-50817 Important: gimp security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Aug 5, 2026
References
- RHSA-2026:50817 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-66759 vdb-entry
- RHBZ#2507557 issue-tracking
- https://gitlab.gnome.org/GNOME/gimp/-/issues/16528