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CVE-2026-82328

Gimp: heap out-of-bounds read in ico loader via unvalidated used_clrs palette count

6.1 MediumFix available

A flaw was found in the file-ico plugin in GIMP. When processing a specially crafted ICO image file, the plugin does not properly validate the used_clrs (palette count) parameter. This incorrect validation leads to improper memory bounds checking, resulting in a heap out-of-bounds read. This issue can result in an application crash, leading to a denial of service or a limited information disclosure of heap memory contents.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
Low
Integrity
None
Availability
High

Exploit likelihood

0.18%Up 0.1 points since Aug 29, 2026
90%50%10%1%

What each source reports

CVE List Score used 6.1

Gimp: heap out-of-bounds read in ico loader via unvalidated used_clrs palette count

A flaw was found in the file-ico plugin in GIMP. When processing a specially crafted ICO image file, the plugin does not properly validate the used_clrs (palette count) parameter. This incorrect validation leads to improper memory bounds checking, resulting in a heap out-of-bounds read. This issue can result in an application crash, leading to a denial of service or a limited information disclosure of heap memory contents.

Record
CVE-2026-82328
CVSS 3.1
6.1 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Weakness
CWE-125
Updated
2026-11-06
EUVDEUVD-2026-67725 6.1

A flaw was found in the file-ico plugin in GIMP. When processing a specially crafted ICO image file, the plugin does not properly validate the used_clrs (palette count) parameter. This incorrect validation leads to improper memory bounds checking, resulting in a heap out-of-bounds read. This issue can result in an application crash, leading to a denial of service or a limited information disclosure of heap memory contents.

Record
EUVD-2026-67725
CVSS 3.1
6.1 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Updated
2026-11-06
GitHub AdvisoriesGHSA-q72j-h9qm-329m 6.1

A flaw was found in the file-ico plugin in GIMP. When processing a specially crafted ICO image...

A flaw was found in the file-ico plugin in GIMP. When processing a specially crafted ICO image file, the plugin does not properly validate the used_clrs (palette count) parameter. This incorrect validation leads to improper memory bounds checking, resulting in a heap out-of-bounds read. This issue can result in an application crash, leading to a denial of service or a limited information disclosure of heap memory contents.

Record
GHSA-q72j-h9qm-329m
CVSS 3.1
6.1 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Weakness
CWE-125
Updated
2026-11-02
NVD 6.1

A flaw was found in the file-ico plugin in GIMP. When processing a specially crafted ICO image file, the plugin does not properly validate the used_clrs (palette count) parameter. This incorrect validation leads to improper memory bounds checking, resulting in a heap out-of-bounds read. This issue can result in an application crash, leading to a denial of service or a limited information disclosure of heap memory contents.

Record
CVE-2026-82328
CVSS 3.1
6.1 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Weakness
CWE-125
Updated
2026-11-06
OSVDEBIAN-CVE-2026-82328 6.1

A flaw was found in the file-ico plugin in GIMP. When processing a specially crafted ICO image file, the plugin does not properly validate the used_clrs (palette count) parameter. This incorrect validation leads to improper memory bounds checking, resulting in a heap out-of-bounds read. This issue can result in an application crash, leading to a denial of service or a limited information disclosure of heap memory contents.

Record
DEBIAN-CVE-2026-82328
CVSS 3.1
6.1 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Updated
2026-11-06
OSVOESA-2026-4223 7.8

gimp security update

The GIMP is an image composition and editing program, which can be used for creating logos and other graphics for Web pages. The GIMP offers many tools and filters, and provides a large image manipulation toolbox, including channel operations and layers, effects, subpixel imaging and antialiasing, and conversions, together with multilevel undo. The GIMP offers a scripting facility, but many of the included scripts rely on fonts that we cannot distribute.

Security Fix(es):

A flaw was found in the file-ico plugin in GIMP. When processing a specially crafted ICO image file, the plugin does not properly validate the used_clrs (palette count) parameter. This incorrect validation leads to improper memory bounds checking, resulting in a heap out-of-bounds read. This issue can result in an application crash, leading to a denial of service or a limited information disclosure of heap memory contents.(CVE-2026-82328)

A flaw was found in the file-pvr plugin in GIMP. When processing a specially crafted PVR image file, the VQ (compressed) decoder does not properly perform memory bounds checking. This missing validation results in a heap out-of-bounds read. This issue can result in an application crash, leading to a denial of service or a limited information disclosure of heap memory contents.(CVE-2026-82330)

A flaw was found in GIMP. When processing a specially crafted lighting preset file, the Lighting Effects filter does not properly validate the number of light sources. This can lead to an out-of-bounds write, corrupting memory. An attacker could exploit this by convincing a user to open a malicious preset file, potentially causing a crash or enabling arbitrary code execution.(CVE-2026-90947)

Record
OESA-2026-4223
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
Show 6 moreShow less
OSVUBUNTU-CVE-2026-82328 6.1

A flaw was found in the file-ico plugin in GIMP. When processing a specially crafted ICO image file, the plugin does not properly validate the used_clrs (palette count) parameter. This incorrect validation leads to improper memory bounds checking, resulting in a heap out-of-bounds read. This issue can result in an application crash, leading to a denial of service or a limited information disclosure of heap memory contents.

Record
UBUNTU-CVE-2026-82328
CVSS 3.1
6.1 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Updated
2026-11-02
OSVCLSA-2026-1788427757 No score

gimp: Fix of CVE-2026-82328

  • CVE-2026-82328: fix heap out-of-bounds read in the ICO loader by bounding the used_clrs palette-size field to the maximum colors for the image bit depth and allocating the palette using that bound instead of the untrusted header value
Record
CLSA-2026-1788427757
Updated
2026-11-02
OSVCLSA-2026-1788429305 No score

gimp: Fix of CVE-2026-82328

  • CVE-2026-82328: fix heap out-of-bounds read in the ICO loader by bounding the used_clrs palette-size field to the maximum colors for the image bit depth and allocating the palette using that bound instead of the untrusted header value
Record
CLSA-2026-1788429305
Updated
2026-11-02
OSVMGASA-2026-0578 No score

Updated gimp packages fix security vulnerabilities

This update to v. 3.2.8 fixes several security issues.

Record
MGASA-2026-0578
Updated
2026-11-07
OSVopenSUSE-SU-2026:22123-1 No score

Security update for gimp

This update for gimp fixes the following issues:

Changes in gimp:

  • CVE-2026-106061: plug-ins: Bound allocation for XMC import (bsc#1284473)
  • CVE-2026-106062: plug-ins/file-dds: fix out of bounds write (bsc#1284474)
  • CVE-2026-106063: plug-ins: Add bounds checks for DICOM export (bsc#1284475)
  • CVE-2026-82324: plug-ins: Add more checks for IFF import (bsc#1277594)
  • CVE-2026-82328: plug-ins: Use BPP for ICO palette allocation (bsc#1277618)
  • CVE-2026-82343: plug-ins: fix heap out of bounds in PSD loader (bsc#1277622)
Record
openSUSE-SU-2026:22123-1
Updated
2026-11-02
OSVSUSE-SU-2026:4895-1 No score

Security update for gimp

This update for gimp fixes the following issues:

  • CVE-2026-82328: undersized palette memory allocations in the ICO loader can cause heap out-of-bounds reads (bsc#1277618).
  • CVE-2026-82343: improper channel-count handling in the PSD loader can cause heap and stack out-of-bounds reads (bsc#1277622).
  • CVE-2026-106061: integer overflow in the X cursor thumbnail loader leads to out-of-bounds read and process crash when generating a thumbnail for a crafted XMC file (bsc#1284473).
  • CVE-2026-106062: heap-based buffer overflow in DirectDraw Surface loader when loading a crafted DDS image (bsc#1284474).
  • CVE-2026-106063: heap-based buffer overflow in the DICOM export plug-in when exporting an image with extremely large width and height (bsc#1284475).
Record
SUSE-SU-2026:4895-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
gimp
TuxCare:AlmaLinux:9.2
before 2:2.99.8-4.el9.2.tuxcare.els18
2:2.99.8-4.el9.2.tuxcare.els18
gimp-devel
TuxCare:AlmaLinux:9.2
before 2:2.99.8-4.el9.2.tuxcare.els18
2:2.99.8-4.el9.2.tuxcare.els18
gimp-devel-tools
TuxCare:AlmaLinux:9.2
before 2:2.99.8-4.el9.2.tuxcare.els18
2:2.99.8-4.el9.2.tuxcare.els18
gimp-libs
TuxCare:AlmaLinux:9.2
before 2:2.99.8-4.el9.2.tuxcare.els18
2:2.99.8-4.el9.2.tuxcare.els18
gimp
TuxCare:AlmaLinux:9.6
before 2:2.99.8-4.el9_6.2.tuxcare.els18
2:2.99.8-4.el9_6.2.tuxcare.els18
gimp-devel
TuxCare:AlmaLinux:9.6
before 2:2.99.8-4.el9_6.2.tuxcare.els18
2:2.99.8-4.el9_6.2.tuxcare.els18
gimp-devel-tools
TuxCare:AlmaLinux:9.6
before 2:2.99.8-4.el9_6.2.tuxcare.els18
2:2.99.8-4.el9_6.2.tuxcare.els18
gimp-libs
TuxCare:AlmaLinux:9.6
before 2:2.99.8-4.el9_6.2.tuxcare.els18
2:2.99.8-4.el9_6.2.tuxcare.els18
gimp
Debian:12
All versions, plus listed versions
2.10.34-12.10.34-1+deb12u12.10.34-1+deb12u102.10.34-1+deb12u22.10.34-1+deb12u3
Show 45 moreShow less
2.10.34-1+deb12u42.10.34-1+deb12u52.10.34-1+deb12u62.10.34-1+deb12u72.10.34-1+deb12u82.10.34-1+deb12u92.10.36-12.10.36-22.10.36-32.10.38-12.10.38-22.99.10-12.99.12-12.99.12-22.99.14-12.99.14-22.99.16-12.99.16-22.99.18-13.0.0-13.0.0-23.0.0~RC1-13.0.0~RC1-33.0.0~RC1-43.0.0~RC2-13.0.0~RC3-13.0.2-13.0.2-23.0.2-33.0.2-3.13.0.4-13.0.4-23.0.4-33.0.4-43.0.4-53.0.4-63.0.4-6.13.0.4-6.23.0.6-13.2.0-13.2.0~RC2-13.2.0~RC2-23.2.0~RC2-33.2.0~RC2-3.13.2.0~RC2-3.2
None known
gimp
Debian:13
before 3.0.4-3+deb13u11, plus listed versions
3.0.4-33.0.4-3+deb13u13.0.4-3+deb13u103.0.4-3+deb13u23.0.4-3+deb13u3
Show 6 moreShow less
3.0.4-3+deb13u43.0.4-3+deb13u53.0.4-3+deb13u63.0.4-3+deb13u73.0.4-3+deb13u83.0.4-3+deb13u9
3.0.4-3+deb13u11
Show 13 moreShow less
Affected packages
PackageAffectedFixed
gimp
Debian:14
before 3.2.6-1, plus listed versions
3.0.4-33.0.4-43.0.4-53.0.4-63.0.4-6.1
Show 14 moreShow less
3.0.4-6.23.0.6-13.2.0-13.2.0~RC2-13.2.0~RC2-23.2.0~RC2-33.2.0~RC2-3.13.2.0~RC2-3.23.2.0~RC2-3.33.2.0~RC3-13.2.2-13.2.4-13.2.4-23.2.4-3
3.2.6-1
gimp
Mageia:10
From an advisory covering 28 CVEs
before 3.2.8-1.mga10
3.2.8-1.mga10
gimp
openEuler:24.03-LTS-SP4
From an advisory covering 3 CVEs
before 3.2.6-1.oe2403sp4
3.2.6-1.oe2403sp4
gimp
SUSE:Linux Enterprise Module for Package Hub 15 SP7
From an advisory covering 5 CVEs
before 2.10.30-150400.3.85.1
2.10.30-150400.3.85.1
gimp
SUSE:Linux Enterprise Workstation Extension 15 SP7
From an advisory covering 5 CVEs
before 2.10.30-150400.3.85.1
2.10.30-150400.3.85.1
gimp
Ubuntu:Pro:16.04:LTS
All versions, plus listed versions
2.8.14-1ubuntu22.8.14-1.2ubuntu12.8.16-1ubuntu12.8.16-1ubuntu1.12.8.16-1ubuntu1.1+esm12.8.16-1ubuntu1.1+esm22.8.16-1ubuntu1.1+esm3
None known
gimp
Ubuntu:Pro:18.04:LTS
All versions, plus listed versions
2.8.20-12.8.20-1.12.8.20-22.8.22-12.8.22-1ubuntu0.1~esm12.8.22-1ubuntu0.1~esm22.8.22-1ubuntu0.1~esm3
None known
gimp
Ubuntu:Pro:20.04:LTS
All versions, plus listed versions
2.10.8-22.10.14-22.10.14-2build12.10.14-2ubuntu12.10.14-3
Show 5 moreShow less
2.10.18-12.10.18-1ubuntu0.12.10.18-1ubuntu0.1+esm12.10.18-1ubuntu0.1+esm22.10.18-1ubuntu0.1+esm3
None known
gimp
Ubuntu:Pro:22.04:LTS
All versions, plus listed versions
2.10.24-22.10.28-12.10.30-12.10.30-1build12.10.30-1ubuntu0.12.10.30-1ubuntu0.1+esm12.10.30-1ubuntu0.1+esm22.10.30-1ubuntu0.1+esm3
None known
gimp
Ubuntu:Pro:24.04:LTS
All versions, plus listed versions
2.10.34-12.10.36-12.10.36-22.10.36-3build22.10.36-3build3
Show 4 moreShow less
2.10.36-3ubuntu0.24.04.12.10.36-3ubuntu0.24.04.1+esm12.10.36-3ubuntu0.24.04.1+esm22.10.36-3ubuntu0.24.04.1+esm3
None known
gimp
Ubuntu:26.10
All versions, plus listed versions
3.2.2-13.2.4-13.2.4-23.2.4-33.2.6-1
None known
gimp
Ubuntu:26.04:LTS
All versions, plus listed versions
3.0.4-6.13.0.4-6.23.0.6-13.2.0~RC2-23.2.0~RC2-3
Show 7 moreShow less
3.2.0~RC2-3.13.2.0~RC2-3.23.2.0~RC2-3.33.2.0~RC3-13.2.0-13.2.2-13.2.2-1ubuntu0.26.04.1
None known
gimp
openSUSE:Leap 16.0
From an advisory covering 6 CVEs
before 3.0.8-bp160.13.1
3.0.8-bp160.13.1

History

History
RecordedChangedSources
affected, aliases, referencesOSV
affectedOSV
affectedCVE List, NVD
factsEUVD
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-82328 is a medium vulnerability (CVSS 6.1) in Gimp, published August 28, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.18%, the 7th percentile. Fixed in gimp 2:2.99.8-4.el9.2.tuxcare.els18.

References

Show 29 moreShow less
This page doesn't list everything

Left out here: 8 versions. The JSON record has them.

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