What’s Vulnerable › Vulnerabilities

CVE-2024-32035: Memory Allocation with Excessive Size Value in SixLabors.ImageSharp

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-04-15 · updated 2026-06-17
• Weakness: CWE-789

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 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. The problem has been patched in v3.1.4 and v2.1.8.

Affected products

• SixLabors ImageSharp: before 2.1.8; from 3.0.0 before 3.1.4 — fixed in 2.1.8, 3.1.4

How to fix

Upgrade to a fixed version: SixLabors ImageSharp 2.1.8, 3.1.4. Check the vendor advisory for mitigations.

References

• 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/commit/b6b08ac3e7cea8da5ac1e90f7c0b67dd254535c3
• https://github.com/SixLabors/ImageSharp/commit/f21d64188e59ae9464ff462056a5e29d8e618b27
• https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-g85r-6x2q-45w7
• 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/commit/b6b08ac3e7cea8da5ac1e90f7c0b67dd254535c3
• https://github.com/SixLabors/ImageSharp/commit/f21d64188e59ae9464ff462056a5e29d8e618b27
• https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-g85r-6x2q-45w7

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