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Fix CVE(s): CVE-2026-86421

Type: advisorySources: OSV

* SECURITY UPDATE: memory leak in the MSL decoder, one DrawInfo per element, leading to denial of service - debian/patches/CVE-2026-86421.patch: destroy the per-group draw_info clone when popping a in MSLEndElement() in coders/msl.c - CVE-2026-86421

Products
imagemagick, imagemagick-6-common, imagemagick-6-doc, imagemagick-6.q16, imagemagick-6.q16hdri, imagemagick-common, imagemagick-doc, libimage-magick-perl, libimage-magick-q16-perl, libimage-magick-q16hdri-perl, libmagick++-6-headers, libmagick++-6.q16-8, libmagick++-6.q16-dev, libmagick++-6.q16hdri-8, libmagick++-6.q16hdri-dev, libmagick++-dev, libmagickcore-6-arch-config, libmagickcore-6-headers, libmagickcore-6.q16-6, libmagickcore-6.q16-6-extra, libmagickcore-6.q16-dev, libmagickcore-6.q16hdri-6, libmagickcore-6.q16hdri-6-extra, libmagickcore-6.q16hdri-dev, libmagickcore-dev, libmagickwand-6-headers, libmagickwand-6.q16-6, libmagickwand-6.q16-dev, libmagickwand-6.q16hdri-6, libmagickwand-6.q16hdri-dev, libmagickwand-dev, perlmagick
Affected versions
Not specified
Fixed versions
8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21
CVEs
CVE-2026-86421
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 11:23 UTC · Revision 1

Source evidence

Fix CVE(s): CVE-2026-86421

core-osv · Original source

Published 13 Oct 2026, 21:05 UTC

* SECURITY UPDATE: memory leak in the MSL decoder, one DrawInfo per element, leading to denial of service - debian/patches/CVE-2026-86421.patch: destroy the per-group draw_info clone when popping a in MSLEndElement() in coders/msl.c - CVE-2026-86421

osv:CLSA-2026-1791925507

imagemagick

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

imagemagick-6-common

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

imagemagick-6-doc

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

imagemagick-6.q16

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

imagemagick-6.q16hdri

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

imagemagick-common

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

imagemagick-doc

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

libimage-magick-perl

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

libimage-magick-q16-perl

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

libimage-magick-q16hdri-perl

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

libmagick++-6-headers

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

libmagick++-6.q16-8

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

libmagick++-6.q16-dev

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

libmagick++-6.q16hdri-8

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

libmagick++-6.q16hdri-dev

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

libmagick++-dev

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

libmagickcore-6-arch-config

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

libmagickcore-6-headers

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

libmagickcore-6.q16-6

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

libmagickcore-6.q16-6-extra

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

libmagickcore-6.q16-dev

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

libmagickcore-6.q16hdri-6

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

libmagickcore-6.q16hdri-6-extra

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

libmagickcore-6.q16hdri-dev

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

libmagickcore-dev

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

libmagickwand-6-headers

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

libmagickwand-6.q16-6

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

libmagickwand-6.q16-dev

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

libmagickwand-6.q16hdri-6

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

libmagickwand-6.q16hdri-dev

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

libmagickwand-dev

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

perlmagick

Fixed versions: 8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21

Complete source record
{
  "id": "82cb39756aa9921364028d966d030e35befcf69524c835ff348f813596b2657a",
  "url": "https://osv.dev/vulnerability/CLSA-2026-1791925507",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Fix CVE(s): CVE-2026-86421",
    "summary": "* SECURITY UPDATE: memory leak in the MSL decoder, one DrawInfo per element, leading to denial of service - debian/patches/CVE-2026-86421.patch: destroy the per-group draw_info clone when popping a in MSLEndElement() in coders/msl.c - CVE-2026-86421",
    "evidence": "osv:CLSA-2026-1791925507",
    "products": [
      {
        "name": {
          "value": "imagemagick",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "imagemagick-6-common",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "imagemagick-6-doc",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "imagemagick-6.q16",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/3/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "imagemagick-6.q16hdri",
          "evidence": "/affected/4/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/4/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "imagemagick-common",
          "evidence": "/affected/5/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/5/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "imagemagick-doc",
          "evidence": "/affected/6/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/6/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libimage-magick-perl",
          "evidence": "/affected/7/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/7/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libimage-magick-q16-perl",
          "evidence": "/affected/8/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/8/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libimage-magick-q16hdri-perl",
          "evidence": "/affected/9/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/9/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libmagick++-6-headers",
          "evidence": "/affected/10/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/10/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libmagick++-6.q16-8",
          "evidence": "/affected/11/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/11/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libmagick++-6.q16-dev",
          "evidence": "/affected/12/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/12/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libmagick++-6.q16hdri-8",
          "evidence": "/affected/13/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/13/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libmagick++-6.q16hdri-dev",
          "evidence": "/affected/14/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/14/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libmagick++-dev",
          "evidence": "/affected/15/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/15/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libmagickcore-6-arch-config",
          "evidence": "/affected/16/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/16/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libmagickcore-6-headers",
          "evidence": "/affected/17/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/17/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libmagickcore-6.q16-6",
          "evidence": "/affected/18/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/18/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libmagickcore-6.q16-6-extra",
          "evidence": "/affected/19/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/19/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libmagickcore-6.q16-dev",
          "evidence": "/affected/20/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/20/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libmagickcore-6.q16hdri-6",
          "evidence": "/affected/21/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/21/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libmagickcore-6.q16hdri-6-extra",
          "evidence": "/affected/22/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/22/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libmagickcore-6.q16hdri-dev",
          "evidence": "/affected/23/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/23/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libmagickcore-dev",
          "evidence": "/affected/24/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/24/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libmagickwand-6-headers",
          "evidence": "/affected/25/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/25/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libmagickwand-6.q16-6",
          "evidence": "/affected/26/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/26/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libmagickwand-6.q16-dev",
          "evidence": "/affected/27/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/27/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libmagickwand-6.q16hdri-6",
          "evidence": "/affected/28/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/28/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libmagickwand-6.q16hdri-dev",
          "evidence": "/affected/29/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/29/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libmagickwand-dev",
          "evidence": "/affected/30/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/30/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "perlmagick",
          "evidence": "/affected/31/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21",
            "evidence": "/affected/31/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2026-1791925507",
      "aliases": [
        "CLSA-2026-1791925507"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21"
                }
              ]
            }
          ],
          "package": {
            "name": "imagemagick",
            "purl": "pkg:deb/tuxcare/imagemagick?distro=debian-10",
            "ecosystem": "TuxCare:Debian:10"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/debian10els/CLSA-2026-1791925507.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21"
                }
              ]
            }
          ],
          "package": {
            "name": "imagemagick-6-common",
            "purl": "pkg:deb/tuxcare/imagemagick-6-common?distro=debian-10",
            "ecosystem": "TuxCare:Debian:10"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/debian10els/CLSA-2026-1791925507.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21"
                }
              ]
            }
          ],
          "package": {
            "name": "imagemagick-6-doc",
            "purl": "pkg:deb/tuxcare/imagemagick-6-doc?distro=debian-10",
            "ecosystem": "TuxCare:Debian:10"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/debian10els/CLSA-2026-1791925507.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21"
                }
              ]
            }
          ],
          "package": {
            "name": "imagemagick-6.q16",
            "purl": "pkg:deb/tuxcare/imagemagick-6.q16?distro=debian-10",
            "ecosystem": "TuxCare:Debian:10"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/debian10els/CLSA-2026-1791925507.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "8:6.9.10.23+dfsg-2.1+deb10u7+tuxcare.els21"
                }
              ]
            }
          ],
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      "modified": "2026-10-26T09:31:53.175956561Z",
      "provider": "osv",
      "upstream": [
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      "references": [
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        "https://nvd.nist.gov/vuln/detail/CVE-2026-86421"
      ]
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        "value": "CVE-2026-86421",
        "evidence": "/upstream"
      }
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    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 448835,
  "published_at": "2026-10-13T21:05:19+00:00"
}