Vulnerability Details CVE-2026-106115
ImageSharp is a 2D graphics library. From 2.1.0 until 4.1.2, the TIFF CCITT Group 4 encoder allocates Width times rowsPerStrip bytes even though T6BitCompressor.CompressStrip can emit encoded row data and two 12-bit end-of-facsimile-block codes beyond that capacity. TiffCcittCompressor.WriteCode performs unchecked writes, and a decode-and-re-encode flow can inherit TiffCompression.CcittGroup4Fax and one-bit metadata from attacker-supplied input. The resulting out-of-bounds writes can corrupt memory and terminate the process. This issue is fixed in version 4.1.2.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 29.1%
CVSS Severity
CVSS v3 Score 7.5
Products affected by CVE-2026-106115
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cpe:2.3:a:sixlabors:imagesharp:2.1.0
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cpe:2.3:a:sixlabors:imagesharp:2.1.1
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cpe:2.3:a:sixlabors:imagesharp:2.1.10
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cpe:2.3:a:sixlabors:imagesharp:2.1.11
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cpe:2.3:a:sixlabors:imagesharp:2.1.2
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cpe:2.3:a:sixlabors:imagesharp:2.1.3
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cpe:2.3:a:sixlabors:imagesharp:2.1.4
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cpe:2.3:a:sixlabors:imagesharp:2.1.5
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cpe:2.3:a:sixlabors:imagesharp:2.1.6
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cpe:2.3:a:sixlabors:imagesharp:2.1.7
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cpe:2.3:a:sixlabors:imagesharp:2.1.8
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cpe:2.3:a:sixlabors:imagesharp:2.1.9
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cpe:2.3:a:sixlabors:imagesharp:3.0.0
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cpe:2.3:a:sixlabors:imagesharp:3.0.1
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cpe:2.3:a:sixlabors:imagesharp:3.0.2
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cpe:2.3:a:sixlabors:imagesharp:3.1.0
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cpe:2.3:a:sixlabors:imagesharp:3.1.1
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cpe:2.3:a:sixlabors:imagesharp:3.1.10
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cpe:2.3:a:sixlabors:imagesharp:3.1.11
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cpe:2.3:a:sixlabors:imagesharp:3.1.12
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cpe:2.3:a:sixlabors:imagesharp:3.1.2
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cpe:2.3:a:sixlabors:imagesharp:3.1.3
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cpe:2.3:a:sixlabors:imagesharp:3.1.4
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cpe:2.3:a:sixlabors:imagesharp:3.1.5
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cpe:2.3:a:sixlabors:imagesharp:3.1.6
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cpe:2.3:a:sixlabors:imagesharp:3.1.7
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cpe:2.3:a:sixlabors:imagesharp:3.1.8
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cpe:2.3:a:sixlabors:imagesharp:3.1.9
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cpe:2.3:a:sixlabors:imagesharp:4.0.0
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cpe:2.3:a:sixlabors:imagesharp:4.1.0
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cpe:2.3:a:sixlabors:imagesharp:4.1.1