Use After Free in SixLabors.ImageSharp
Impact
A heap-use-after-free flaw was found in ImageSharp's InitializeImage() function of PngDecoderCore.cs file. This vulnerability is triggered when an attacker passes a specially crafted PNG image file to ImageSharp for conversion, potentially leading to information disclosure.
Patches
The problem has been patched. All users are advised to upgrade to v3.1.3 or v2.1.7.
Workarounds
None
References
None
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| .NET (NuGet) | SixLabors.ImageSharp | >= 3.0.0, < 3.1.3, < 2.1.7 | 3.1.3, 2.1.7 |
References
- CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H- Weakness (CWE)
CWE-416- Platform
- .NET (NuGet)
- Package
SixLabors.ImageSharp- Disclosed
- 05.03.2024
- Updated
- 11.10.2026 11:23
Sources and licenses
OSV / GitHub Advisory Database - GHSA-65x7-c272-7g7r - 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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Use After Free in SixLabors.ImageSharp this entry
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