CVE-2026-106118

ImageSharp is a 2D graphics library. From 3.0.0 until 4.1.1, tiled TIFF decoding allocates a destination buffer using TileWidth but TiffDecompressorsFactory.Create constructs T4, T6, and Modified Huffman decompressors using the full frame width. TiffDecoderCore.DecodeTilesChunky can therefore direct frame-width fax scanlines into a tile-width buffer when TileWidth is smaller than ImageWidth. The mismatch causes attacker-controlled out-of-bounds writes, heap corruption, and process termination even with legal per-row run codes. This tiled-path vulnerability is distinct from oversized CCITT runs in strip decoding. This issue is fixed in version 4.1.1.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/SixLabors/ImageSharp/commit/9ee7d1dd5b62d8c9f16cc755e76828386bc2191f
https://github.com/SixLabors/ImageSharp/pull/3176
https://github.com/SixLabors/ImageSharp/releases/tag/v4.1.1
https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-v76p-62qx-wwq2

Configurations

No configuration.

History

06 Oct 2026, 19:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-06 19:17

Updated : 2026-10-06 20:17

NVD link : CVE-2026-106118

Mitre link : CVE-2026-106118

CVE.ORG link : CVE-2026-106118

JSON object : View

Products Affected

No product.

CWE

CWE-787

Out-of-bounds Write

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