Security advisory

{
  "id": "4e83e495193a2104e43174fcdf9cc3f2c3eca58fe5856d40ff2c0b41dbed090c",
  "url": "https://osv.dev/vulnerability/CVE-2021-26945",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-26945",
    "summary": "An integer overflow leading to a heap-buffer overflow was found in OpenEXR in versions before 3.0.1. An attacker could use this flaw to crash an application compiled with OpenEXR.",
    "evidence": "osv:CVE-2021-26945",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-26945",
      "aliases": [
        "CVE-2021-26945"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/AcademySoftwareFoundation/openexr",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "4a84390282584957ffaf1697c411f9ae7e420f2f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.0.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.0.1-beta",
            "v3.0.0-beta",
            "v2.5.0",
            "v2.4.0",
            "v2.4.0-beta.1",
            "v2.3.0",
            "v2.1.0",
            "v2.0.1",
            "v2.0.0.GM",
            "v2.0.0",
            "v1.7.1",
            "OPENEXR_1_0_4"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-26945.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://github.com/academysoftwarefoundation/openexr",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "4a84390282584957ffaf1697c411f9ae7e420f2f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.0.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.0.1-beta",
            "v3.0.0-beta",
            "v2.5.0",
            "v2.4.0",
            "v2.4.0-beta.1",
            "v2.3.0",
            "v2.1.0",
            "v2.0.1",
            "v2.0.0.GM",
            "v2.0.0",
            "v1.7.1",
            "OPENEXR_1_0_4"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-26945.json"
          }
        }
      ],
      "modified": "2026-10-24T10:31:03.543630582Z",
      "provider": "osv",
      "references": [
        "https://bugzilla.redhat.com/show_bug.cgi?id=1947591"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-26945",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 440288,
  "published_at": "2021-06-08T12:15:11.213+00:00"
}