CVE-2026-106115

{
  "etk_id": "ETK-2026-795",
  "cve_id": "CVE-2026-106115",
  "display_id": "CVE-2026-106115",
  "ghsa_id": "GHSA-jjfr-hcj7-qf5w",
  "euvd_id": "EUVD-2026-93557",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Out-of-bounds write in ImageSharp TIFF Group 4 encoding",
  "summary": "SixLabors.ImageSharp versions 2.1.0 through 4.1.1 mishandle buffer capacity while encoding one-bit TIFF images with CCITT Group 4 compression. An attacker may cause memory corruption and process termination when an application decodes an attacker-supplied Group 4 TIFF and re-encodes it using inherited TIFF metadata.",
  "mitigation": "Upgrade SixLabors.ImageSharp to version 4.1.2 or later. Until upgraded, avoid re-encoding untrusted TIFF files with inherited CCITT Group 4 and one-bit settings.",
  "vendor": "SixLabors",
  "product": "ImageSharp",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 2.1.0, <= 4.1.1"
      ],
      "ecosystem": "nuget",
      "fixed_versions": [
        "4.1.2"
      ],
      "package_name": "SixLabors.ImageSharp",
      "purl": "pkg:nuget/SixLabors.ImageSharp"
    }
  ],
  "cwes": [
    787
  ],
  "cvss_score": 7.5,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss_score": 0.0035,
  "epss_percentile": 0.2723,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 19.80526405,
  "t0_at": "2026-10-06T17:50:15.754000+00:00",
  "signals": {
    "public_poc": {
      "at": "2026-10-07T20:24:46+00:00",
      "days": 1.107294513888889,
      "is_lower_bound": false,
      "measured_at": "2026-10-06T17:50:15.754000+00:00",
      "url": "https://github.com/advisories/GHSA-jjfr-hcj7-qf5w"
    },
    "trigger_signal": {
      "at": "2026-10-06T17:50:15.754000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-06T17:50:15.754000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-106115"
    }
  }
}