CVE-2024-41132 SixLabors ImageSharp Allows Excessive Memory Allocation in Gif Decoder
Attackers can cause denial of service via excessive memory allocation by processing specially crafted GIF files in the ImageSharp library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-41132?
CVE-2024-41132 is a medium-severity denial of service vulnerability in SixLabors ImageSharp, published on 22 Jul 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
ImageSharp is a 2D graphics API. A vulnerability discovered in the ImageSharp library, where the processing of specially crafted files can lead to excessive memory usage in the Gif decoder. The vulnerability is triggered when ImageSharp attempts to process image files that are designed to exploit this flaw. All users are advised to upgrade to v3.1.5 or v2.1.9.
Which versions are affected by CVE-2024-41132?
4 open source packages ship an affected version, including SixLabors.ImageSharp. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
SixLabors.ImageSharp NuGet | All versions | 2.1.9 |
SixLabors.ImageSharp NuGet | All versions | 2.1.9 |
SixLabors.ImageSharp NuGet | From 3.0.0 | 3.1.5 |
SixLabors.ImageSharp NuGet | From 3.0.0 | 3.1.5 |
Products include Sixlabors Imagesharp.
How do I fix CVE-2024-41132?
Upgrade SixLabors.ImageSharp to a fixed version for your release line: 2.1.9 or 3.1.5.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2024-41132 being exploited?
There is no known exploitation of CVE-2024-41132 in the wild and no public exploit code.
Other vulnerabilities in SixLabors ImageSharp
- CVE-2026-106110 ImageSharp: TIFF CCITT T4 encoder can write past its compressed output buffer
- CVE-2026-106112 ImageSharp: ICC LUT16 output channel count can write beyond Vector4
- CVE-2026-106113 ImageSharp: HistogramEqualization uses an unvalidated luminance as an unchecked histogram index
- CVE-2026-106115 ImageSharp: TIFF CCITT T6 encoder writes beyond an undersized output buffer
- CVE-2026-106117 ImageSharp: CCITT fax decompression (T4/Modified Huffman): unbounded WriteBits overflows strip buffer — heap OOB write in SixLabors.ImageSharp
Sources
Also known as ECHO-685f-1633-7127, GHSA-qxrv-gp6x-rc23.