CVE-2026-106118

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Source
https://cve.org/CVERecord?id=CVE-2026-106118
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-106118.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-106118
Aliases
Downstream
Published
2026-10-06T17:59:02Z
Modified
2026-10-28T02:31:14Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
ImageSharp: Tiled fax TIFF: tile buffer sized by TileWidth but fax decompressor writes scanlines of ImageWidth — heap OOB write
Details

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.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-787"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/106xxx/CVE-2026-106118.json"
}
References

Affected packages

Git / github.com/sixlabors/imagesharp

Affected ranges

Type
GIT
Repo
https://github.com/sixlabors/imagesharp
Events
Introduced
6ec1692ee295923d9d40956befd4417d6735507b
Fixed
0815358f9202a78bc7f3b83e19282dc3654b500f
Fixed
9ee7d1dd5b62d8c9f16cc755e76828386bc2191f
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "3.0.0"
                },
                {
                    "fixed":  "4.1.1"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "fixed":  "9ee7d1dd5b62d8c9f16cc755e76828386bc2191f"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "v4.1.1",
            "range":  [
                {
                    "fixed":  "0815358f9202a78bc7f3b83e19282dc3654b500f"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

Affected versions

v3.*
v3.0.0
v3.0.1
v3.1.0
v4.*
v4.0.0
v4.1.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-106118.json"