iccDEV has Undefined Behavior in CIccTagCurve::CIccTagCurve()

{
  "id": "33a5e61ecf6a23372d416de8e8362dcbe2d21b710b09e1dad52ed17c94a7405a",
  "url": "https://osv.dev/vulnerability/CVE-2026-21687",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "iccDEV has Undefined Behavior in CIccTagCurve::CIccTagCurve()",
    "summary": "iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of International Color Consortium (ICC) color management profiles. Versions prior to 2.3.1.2 have Undefined Behavior in `CIccTagCurve::CIccTagCurve()`. This vulnerability affects users of the iccDEV library who process ICC color profiles. Version 2.3.1.2 contains a patch. No known workarounds are available.",
    "evidence": "osv:CVE-2026-21687",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-21687",
      "aliases": [
        "CVE-2026-21687",
        "GHSA-prmm-g479-4fv7"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/internationalcolorconsortium/iccdev",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "ad159eb00bf46fa17496a0f8c4cb49de8918062c"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.3.1.2"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "cpe": "cpe:2.3:a:color:iccdev:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.3.1.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.3.1.1",
            "v2.3.1",
            "v2.2.6"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-21687.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:22.977936681Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/21xxx/CVE-2026-21687.json",
        "https://github.com/InternationalColorConsortium/iccDEV/security/advisories/GHSA-prmm-g479-4fv7",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-21687",
        "https://github.com/InternationalColorConsortium/iccDEV/issues/180",
        "https://github.com/InternationalColorConsortium/iccDEV/pull/221"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-20",
          "CWE-758"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/21xxx/CVE-2026-21687.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-21687",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 489108,
  "published_at": "2026-01-07T21:32:13.792+00:00"
}