SixLabors.ImageSharp vulnerable to Memory Allocation with Excessive Size Value
Impact
A vulnerability discovered in the ImageSharp library, where the processing of specially crafted files can lead to excessive memory usage in image decoders. The vulnerability is triggered when ImageSharp attempts to process image files that are designed to exploit this flaw.
This flaw can be exploited to cause a denial of service (DoS) by depleting process memory, thereby affecting applications and services that rely on ImageSharp for image processing tasks. Users and administrators are advised to update to the latest version of ImageSharp that addresses this vulnerability to mitigate the risk of exploitation.
Patches
The problem has been patched. All users are advised to upgrade to v3.1.4 or v2.1.8.
Workarounds
Before calling Image.Decode(Async), use Image.Identify to determine the image dimensions in order to enforce a limit.
References
- ImageSharp: Security Considerations
- ImageSharp.Web: Securing Processing Commands
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| .NET (NuGet) | SixLabors.ImageSharp | < 2.1.8, >= 3.0.0, < 3.1.4 | 2.1.8, 3.1.4 |
References
- https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-g85r-6x2q-45w7
- https://nvd.nist.gov/vuln/detail/CVE-2024-32035
- https://github.com/SixLabors/ImageSharp/commit/b6b08ac3e7cea8da5ac1e90f7c0b67dd254535c3
- https://github.com/SixLabors/ImageSharp/commit/f21d64188e59ae9464ff462056a5e29d8e618b27
- 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
- 15.04.2024
- Updated
- 11.10.2026 11:23
Sources and licenses
OSV / GitHub Advisory Database - GHSA-g85r-6x2q-45w7 - 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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SixLabors.ImageSharp vulnerable to Memory Allocation with Excessive Size Value this entry
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