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UnratedFix available

Fix CVE(s): CVE-2026-55059

Type: advisorySources: OSV

* SECURITY UPDATE: Heap out-of-bounds write in SampleCountChannel row setter - debian/patches/CVE-2026-55059.patch: use min.y for the row origin and bounds-check rows and pixels in IlmImfUtil/ImfSampleCountChannel.cpp. - CVE-2026-55059

Products
libopenexr-dev, libopenexr22, openexr, openexr-doc
Affected versions
Not specified
Fixed versions
2.2.0-11.1ubuntu1.9+tuxcare.els4
CVEs
CVE-2026-55059
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 11:43 UTC · Revision 1

Source evidence

Fix CVE(s): CVE-2026-55059

core-osv · Original source

Published 21 Oct 2026, 13:05 UTC

* SECURITY UPDATE: Heap out-of-bounds write in SampleCountChannel row setter - debian/patches/CVE-2026-55059.patch: use min.y for the row origin and bounds-check rows and pixels in IlmImfUtil/ImfSampleCountChannel.cpp. - CVE-2026-55059

osv:CLSA-2026-1792587918

libopenexr-dev

Fixed versions: 2.2.0-11.1ubuntu1.9+tuxcare.els4

libopenexr22

Fixed versions: 2.2.0-11.1ubuntu1.9+tuxcare.els4

openexr

Fixed versions: 2.2.0-11.1ubuntu1.9+tuxcare.els4

openexr-doc

Fixed versions: 2.2.0-11.1ubuntu1.9+tuxcare.els4

Complete source record
{
  "id": "d6c456cd5b687449625a5241c737cb3b637b23606734dd9c64b22ba14ced71fe",
  "url": "https://osv.dev/vulnerability/CLSA-2026-1792587918",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Fix CVE(s): CVE-2026-55059",
    "summary": "* SECURITY UPDATE: Heap out-of-bounds write in SampleCountChannel row setter - debian/patches/CVE-2026-55059.patch: use min.y for the row origin and bounds-check rows and pixels in IlmImfUtil/ImfSampleCountChannel.cpp. - CVE-2026-55059",
    "evidence": "osv:CLSA-2026-1792587918",
    "products": [
      {
        "name": {
          "value": "libopenexr-dev",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.2.0-11.1ubuntu1.9+tuxcare.els4",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libopenexr22",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.2.0-11.1ubuntu1.9+tuxcare.els4",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "openexr",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.2.0-11.1ubuntu1.9+tuxcare.els4",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "openexr-doc",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.2.0-11.1ubuntu1.9+tuxcare.els4",
            "evidence": "/affected/3/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2026-1792587918",
      "aliases": [
        "CLSA-2026-1792587918"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.2.0-11.1ubuntu1.9+tuxcare.els4"
                }
              ]
            }
          ],
          "package": {
            "name": "libopenexr-dev",
            "purl": "pkg:deb/tuxcare/libopenexr-dev?distro=ubuntu-18.04",
            "ecosystem": "TuxCare:Ubuntu:18.04"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1792587918.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.2.0-11.1ubuntu1.9+tuxcare.els4"
                }
              ]
            }
          ],
          "package": {
            "name": "libopenexr22",
            "purl": "pkg:deb/tuxcare/libopenexr22?distro=ubuntu-18.04",
            "ecosystem": "TuxCare:Ubuntu:18.04"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1792587918.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.2.0-11.1ubuntu1.9+tuxcare.els4"
                }
              ]
            }
          ],
          "package": {
            "name": "openexr",
            "purl": "pkg:deb/tuxcare/openexr?distro=ubuntu-18.04",
            "ecosystem": "TuxCare:Ubuntu:18.04"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1792587918.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.2.0-11.1ubuntu1.9+tuxcare.els4"
                }
              ]
            }
          ],
          "package": {
            "name": "openexr-doc",
            "purl": "pkg:deb/tuxcare/openexr-doc?distro=ubuntu-18.04",
            "ecosystem": "TuxCare:Ubuntu:18.04"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1792587918.json"
          }
        }
      ],
      "modified": "2026-10-26T09:32:04.533881732Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-55059"
      ],
      "references": [
        "https://errata.tuxcare.com/els_os/ubuntu18.04els/CLSA-2026-1792587918.html",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-55059"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-55059",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 449616,
  "published_at": "2026-10-21T13:05:29+00:00"
}