Is CVE-2026-33328 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-33328 being exploited in the wild.

How severe is CVE-2026-33328?

Informational severity, with a CVSS score of 6.8, published 20 July 2026.

Is there a fix for CVE-2026-33328?

A patch was published on 2026-03-07: Fix merged into 8.18 branch via pull request 4935 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-33328 attacked?

It is attacked with local access, in a software library.

Am I affected by CVE-2026-33328?

Check whether you run Libvips at an affected version. 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-2026-33328: libvips integer overflow in gifload on 32-bit systems

CVE-2026-33328 · Severity: info · CVSS 6.8 · Published 2026-07-20

libvips is a high-speed image processing library used by many applications to handle and resize images. On 32-bit systems, a flaw in how the library processes GIF files could allow an attacker to cause a system crash or service outage. This could disrupt operations for any software relying on this library to process user-uploaded images.

Technologies: Libvips. Vendors: Libvips.

Quick answers

Is CVE-2026-33328 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-33328 being exploited in the wild.
How severe is CVE-2026-33328?: Informational severity, with a CVSS score of 6.8, published 20 July 2026.
Which products and versions are affected?: Libvips <= 8.18.0.
Is there a fix for CVE-2026-33328?: A patch was published on 2026-03-07: Fix merged into 8.18 branch via pull request 4935 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-33328 attacked?: It is attacked with local access, in a software library.
Am I affected by CVE-2026-33328?: Check whether you run Libvips at an affected version. 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

An integer overflow vulnerability (CWE-190) exists in libvips within the `gifload` operation (specifically in `nsgifload.c`). The flaw occurs on 32-bit platforms when the library incorrectly calculates image dimensions, potentially leading to memory corruption or a denial-of-service (DoS) condition. An attacker with local access or the ability to submit a malicious GIF for processing could trigger this overflow. The issue is specific to 32-bit architectures where address space and integer sizes are more constrained. The vulnerability has been addressed in version 8.18.1, and a workaround exists to block the `VipsForeignLoadNsgif` operation.

Affected products

libvips libvips <= 8.18.0

Timeline

2026-03-07: patched: Fix merged into 8.18 branch via pull request 4935
2026-07-17: advisory: GitHub Security Advisory published
2026-07-20: disclosed: CVE published to NVD

References

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