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CVE-2026-33328

Possible integer overflow on 32-bit systems when reading GIF images

6.8 MediumFix available

libvips is a fast image processing library with low memory needs. On 32-bit systems in versions before and including 8.18.0, the gifload operation could incorrectly determine dimensions leading to an integer overflow. This has been patched in version 8.18.1.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.15%Unchanged since Jul 21, 2026
90%50%10%1%

What each source reports

CVE List Score used 6.8

Possible integer overflow on 32-bit systems when reading GIF images

libvips is a fast image processing library with low memory needs. On 32-bit systems in versions before and including 8.18.0, the gifload operation could incorrectly determine dimensions leading to an integer overflow. This has been patched in version 8.18.1.

Record
CVE-2026-33328
CVSS 4.0
6.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Weakness
CWE-190
Updated
2026-11-02
EUVDEUVD-2026-46001 6.8

libvips is a fast image processing library with low memory needs. On 32-bit systems in versions before and including 8.18.0, the gifload operation could incorrectly determine dimensions leading to an integer overflow. This has been patched in version 8.18.1.

Record
EUVD-2026-46001
CVSS 4.0
6.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Updated
2026-11-02
NVD 6.8

libvips is a fast image processing library with low memory needs. On 32-bit systems in versions before and including 8.18.0, the gifload operation could incorrectly determine dimensions leading to an integer overflow. This has been patched in version 8.18.1.

Record
CVE-2026-33328
CVSS 4.0
6.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-190
Updated
2026-11-02
OSV 6.8

Possible integer overflow on 32-bit systems when reading GIF images

libvips is a fast image processing library with low memory needs. On 32-bit systems in versions before and including 8.18.0, the gifload operation could incorrectly determine dimensions leading to an integer overflow. This has been patched in version 8.18.1.

Record
CVE-2026-33328
CVSS 4.0
6.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Weakness
CWE-190
Updated
2026-11-02
OSVDEBIAN-CVE-2026-33328 5.5

libvips is a fast image processing library with low memory needs. On 32-bit systems in versions before and including 8.18.0, the gifload operation could incorrectly determine dimensions leading to an integer overflow. This has been patched in version 8.18.1.

Record
DEBIAN-CVE-2026-33328
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2026-33328 6.8

libvips is a fast image processing library with low memory needs. On 32-bit systems in versions before and including 8.18.0, the gifload operation could incorrectly determine dimensions leading to an integer overflow. This has been patched in version 8.18.1.

Record
UBUNTU-CVE-2026-33328
CVSS 4.0
6.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-04
OSVUSN-8994-1 No score

vips vulnerabilities

It was discovered that libvips incorrectly handled certain PDF files with a page that defines a width but not a height. An attacker could possibly use this issue to cause libvips to crash, resulting in a denial of service, or obtain sensitive information. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 24.04 LTS. (CVE-2025-59933)

It was discovered that libvips incorrectly determined image dimensions in the vipsload operation, leading to an integer overflow. An attacker could possibly use this issue to cause libvips to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2026-33327)

It was discovered that libvips incorrectly determined image dimensions in the gifload operation on 32-bit systems, leading to an integer overflow. An attacker could possibly use this issue to cause libvips to crash, resulting in a denial of service. This issue only affected Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-33328)

It was discovered that libvips did not properly validate EXIF tag groups. An attacker could possibly use this issue to cause libvips to crash, resulting in a denial of service. (CVE-2026-35590)

It was discovered that libvips incorrectly determined the number of channels in certain encoded tiles within TIFF images. An attacker could possibly use this issue to cause libvips to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-35591)

It was discovered that libvips incorrectly validated scanlines in certain TIFF images with many bands, leading to an integer overflow. An attacker could possibly use this issue to cause libvips to crash, resulting in a denial of service, obtain sensitive information, or possibly execute arbitrary code. (CVE-2026-69242)

It was discovered that libvips incorrectly calculated frame heights when loading certain multi-page TIFF images through ImageMagick. An attacker could possibly use this issue to cause libvips to crash, resulting in a denial of service. (CVE-2026-70651)

It was discovered that libvips incorrectly handled certain Radiance images. An attacker could possibly use this issue to obtain sensitive information. (CVE-2026-70653)

It was discovered that libvips incorrectly calculated read sizes when processing certain uncompressed PPM images from custom sources. An attacker could possibly use this issue to cause libvips to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-70654)

Record
USN-8994-1
Updated
2026-11-04

Affected products

Affected packages

Affected packages
PackageAffectedFixed
vips
Debian:12
All versions, plus listed versions
8.14.1-38.14.1-3+deb12u18.14.1-3+deb12u28.14.1-3+deb12u38.14.2-1
Show 30 moreShow less
8.14.3-18.14.4-18.14.5-18.15.0-18.15.0-28.15.0~rc2-18.15.0~rc2-28.15.1-18.15.1-1.18.15.1-1.1~exp18.15.2-18.15.2-28.15.3-18.16.0-18.16.0-28.16.1-18.16.1-28.17.3-18.17.3-28.18.0-18.18.0-28.18.0-38.18.1-18.18.2-18.18.3-18.18.4-18.18.5-18.18.6-18.18.6-28.18.7-1
None known
vips
Debian:13
before 8.16.1-1+deb13u2, plus listed versions
8.16.1-18.16.1-1+deb13u1
8.16.1-1+deb13u2
vips
Debian:14
before 8.18.1-1, plus listed versions
8.16.1-18.16.1-28.17.3-18.17.3-28.18.0-18.18.0-28.18.0-3
8.18.1-1
vips
Ubuntu:Pro:24.04:LTS
before 8.15.1-1.1ubuntu0.1~esm2, plus listed versions
8.14.3-18.14.5-18.15.0-18.15.0-28.15.1-1
Show 4 moreShow less
8.15.1-1build18.15.1-1.1build38.15.1-1.1build48.15.1-1.1ubuntu0.1~esm1
8.15.1-1.1ubuntu0.1~esm2
vips
Ubuntu:Pro:26.04:LTS
before 8.18.0-1ubuntu0.1~esm2, plus listed versions
8.16.1-18.16.1-28.17.3-28.18.0-18.18.0-1build18.18.0-1ubuntu0.1~esm1
8.18.0-1ubuntu0.1~esm2
vips
Ubuntu:Pro:16.04:LTS
From an advisory covering 9 CVEs
before 8.2.2-1ubuntu0.1~esm1, plus listed versions
7.40.6-2ubuntu28.0.2-28.2.1-18.2.2-1
8.2.2-1ubuntu0.1~esm1
vips
Ubuntu:Pro:18.04:LTS
From an advisory covering 9 CVEs
before 8.4.5-1ubuntu0.1~esm2, plus listed versions
8.4.5-1build18.4.5-1ubuntu0.1~esm1
8.4.5-1ubuntu0.1~esm2
vips
Ubuntu:Pro:20.04:LTS
From an advisory covering 9 CVEs
before 8.9.1-2ubuntu0.1~esm2, plus listed versions
8.7.4-1build18.8.3-38.8.3-3ubuntu18.9.0-18.9.0-1build18.9.1-18.9.1-28.9.1-2ubuntu0.1~esm1
8.9.1-2ubuntu0.1~esm2
vips
Ubuntu:Pro:22.04:LTS
From an advisory covering 9 CVEs
before 8.12.1-1ubuntu0.1~esm3, plus listed versions
8.10.5-2ubuntu18.11.4-28.12.1-18.12.1-1build18.12.1-1ubuntu0.1~esm18.12.1-1ubuntu0.1~esm2
8.12.1-1ubuntu0.1~esm3
vips
Ubuntu:Pro:24.04:LTS
From an advisory covering 9 CVEs
before 8.15.1-1.1ubuntu0.1~esm2, plus listed versions
8.14.3-18.14.5-18.15.0-18.15.0-28.15.1-1
Show 4 moreShow less
8.15.1-1build18.15.1-1.1build38.15.1-1.1build48.15.1-1.1ubuntu0.1~esm1
8.15.1-1.1ubuntu0.1~esm2
vips
Ubuntu:Pro:26.04:LTS
From an advisory covering 9 CVEs
before 8.18.0-1ubuntu0.1~esm2, plus listed versions
8.16.1-18.16.1-28.17.3-28.18.0-18.18.0-1build18.18.0-1ubuntu0.1~esm1
8.18.0-1ubuntu0.1~esm2

History

History
RecordedChangedSources
affected
affected, aliases, referencesOSV
affected, factsOSV
first indexedCVE List, EUVD, NVD, OSV

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

In short

CVE-2026-33328 is a medium vulnerability (CVSS 6.8) in Libvips, published July 20, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.15%, the 3rd percentile. Fixed in vips 8.16.1-1+deb13u2.

References

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