Buffer Overflow Vulnerability in ImageSharp 2D Graphics Library
CVE-2026-106118

7.5HIGH

Key Information:

Vendor

Sixlabors

Status
Imagesharp
Vendor
CVE Published:
6 October 2026

What is CVE-2026-106118?

A vulnerability in the ImageSharp 2D graphics library allows for attacker-controlled out-of-bounds writes due to a mismatch in buffer allocation during tiled TIFF decoding. This flaw occurs when the destination buffer is allocated using TileWidth, while decompression methods use the full frame width, leading to potential heap corruption and process termination. This issue affects versions from 3.0.0 to 4.1.1 and has been addressed in version 4.1.1.

Affected Version(s)

ImageSharp >= 3.0.0, < 4.1.1

References

https://github.com/SixLabors/ImageSharp/security/advisori...
x_refsource_CONFIRM
https://github.com/SixLabors/ImageSharp/pull/3176
x_refsource_MISC
https://github.com/SixLabors/ImageSharp/commit/9ee7d1dd5b...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.