SixLabors ImageSharp has Excessive Memory Allocation in Gif Decoder
Impact
What kind of vulnerability is it? Who is impacted?
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.
Patches
Has the problem been patched? What versions should users upgrade to?
The problem has been patched. All users are advised to upgrade to v3.1.5 or v2.1.9.
Workarounds
Is there a way for users to fix or remediate the vulnerability without upgrading?
Before calling Image.Decode(Async), use Image.Identify to determine the image dimensions in order to enforce a limit.
References
Are there any links users can visit to find out more?
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| .NET (NuGet) | SixLabors.ImageSharp | < 2.1.9, >= 3.0.0, < 3.1.5 | 2.1.9, 3.1.5 |
References
- https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-qxrv-gp6x-rc23
- https://nvd.nist.gov/vuln/detail/CVE-2024-41132
- https://github.com/SixLabors/ImageSharp/pull/2759
- https://github.com/SixLabors/ImageSharp/pull/2764
- https://github.com/SixLabors/ImageSharp/pull/2770
- https://github.com/SixLabors/ImageSharp/commit/59de13c8cc47f2b402e2c43aa7024511d029d515
- https://github.com/SixLabors/ImageSharp/commit/9816ca45016c5d3859986f3c600e8934bc450a56
- https://github.com/SixLabors/ImageSharp/commit/b496109051cc39feee1f6cde48fca6481de17f9a
- https://docs.sixlabors.com/articles/imagesharp.web/processingcommands.html#securing-processing-commands
- https://docs.sixlabors.com/articles/imagesharp/security.html
- https://github.com/SixLabors/ImageSharp
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L- Weakness (CWE)
CWE-770, CWE-789- Platform
- .NET (NuGet)
- Package
SixLabors.ImageSharp- Disclosed
- 22.07.2024
- Updated
- 11.10.2026 11:23
Sources and licenses
OSV / GitHub Advisory Database - GHSA-qxrv-gp6x-rc23 - CC BY 4.0
Vulnerability history: SixLabors.ImageSharp
All published vulnerabilities of this package (.NET (NuGet)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 14
- First → latest
- 03.2024 10.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 7
- Medium 7
Disclosures per year
- 2024: 5
- 2025: 2
- 2026: 7
-
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