CVE-2024-27929: Use After Free in SixLabors.ImageSharp

Severity: high (CVSS 7.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2024-03-05 · updated 2026-06-17
Weakness: CWE-416

Description

ImageSharp is a managed, cross-platform, 2D graphics library. 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. This issue has been patched in versions 3.1.3 and 2.1.7.

Affected products

SixLabors ImageSharp: before 2.1.7; from 3.1.0 before 3.1.3 — fixed in 2.1.7, 3.1.3

How to fix

Upgrade to a fixed version: SixLabors ImageSharp 2.1.7, 3.1.3. Check the vendor advisory for mitigations.

References

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