UnratedFix available
Fix CVE(s): CVE-2026-93586
Type: advisorySources: OSV
* SECURITY UPDATE: use-after-free in ImagesToBlob() on multi-image writes - debian/patches/CVE-2026-93586.patch: add SyncBlobStream() to magick/blob.c and call it after each WriteImage() in magick/constitute.c and after the write in ImageToBlob() and ImagesToBlob(), so the image list and image_info stop referencing the buffer a previous frame's SetBlobExtent() reallocated - CVE-2026-93586
- 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.q16-7, libmagick++-6.q16-dev, libmagick++-6.q16hdri-7, libmagick++-6.q16hdri-dev, libmagick++-dev, libmagickcore-6-arch-config, libmagickcore-6-headers, libmagickcore-6.q16-3, libmagickcore-6.q16-3-extra, libmagickcore-6.q16-dev, libmagickcore-6.q16hdri-3, libmagickcore-6.q16hdri-3-extra, libmagickcore-6.q16hdri-dev, libmagickcore-dev, libmagickwand-6-headers, libmagickwand-6.q16-3, libmagickwand-6.q16-dev, libmagickwand-6.q16hdri-3, libmagickwand-6.q16hdri-dev, libmagickwand-dev, perlmagick
- Affected versions
- Not specified
- Fixed versions
- 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
- CVEs
- CVE-2026-93586
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:42 UTC · Revision 1
Source evidence
* SECURITY UPDATE: use-after-free in ImagesToBlob() on multi-image writes - debian/patches/CVE-2026-93586.patch: add SyncBlobStream() to magick/blob.c and call it after each WriteImage() in magick/constitute.c and after the write in ImageToBlob() and ImagesToBlob(), so the image list and image_info stop referencing the buffer a previous frame's SetBlobExtent() reallocated - CVE-2026-93586
osv:CLSA-2026-1790181479
imagemagick
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
imagemagick-6-common
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
imagemagick-6-doc
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
imagemagick-6.q16
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
imagemagick-6.q16hdri
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
imagemagick-common
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
imagemagick-doc
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
libimage-magick-perl
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
libimage-magick-q16-perl
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
libimage-magick-q16hdri-perl
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
libmagick++-6-headers
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
libmagick++-6.q16-7
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
libmagick++-6.q16-dev
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
libmagick++-6.q16hdri-7
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
libmagick++-6.q16hdri-dev
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
libmagick++-dev
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
libmagickcore-6-arch-config
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
libmagickcore-6-headers
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
libmagickcore-6.q16-3
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
libmagickcore-6.q16-3-extra
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
libmagickcore-6.q16-dev
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
libmagickcore-6.q16hdri-3
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
libmagickcore-6.q16hdri-3-extra
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
libmagickcore-6.q16hdri-dev
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
libmagickcore-dev
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
libmagickwand-6-headers
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
libmagickwand-6.q16-3
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
libmagickwand-6.q16-dev
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
libmagickwand-6.q16hdri-3
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
libmagickwand-6.q16hdri-dev
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
libmagickwand-dev
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
perlmagick
Fixed versions: 8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50
Complete source record
{
"id": "de808be7b7b59f3696063eb8c1787d67c0db88b9cc7512804feeb62a6d9aa814",
"url": "https://osv.dev/vulnerability/CLSA-2026-1790181479",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Fix CVE(s): CVE-2026-93586",
"summary": "* SECURITY UPDATE: use-after-free in ImagesToBlob() on multi-image writes - debian/patches/CVE-2026-93586.patch: add SyncBlobStream() to magick/blob.c and call it after each WriteImage() in magick/constitute.c and after the write in ImageToBlob() and ImagesToBlob(), so the image list and image_info stop referencing the buffer a previous frame's SetBlobExtent() reallocated - CVE-2026-93586",
"evidence": "osv:CLSA-2026-1790181479",
"products": [
{
"name": {
"value": "imagemagick",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "imagemagick-6-common",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "imagemagick-6-doc",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "imagemagick-6.q16",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "imagemagick-6.q16hdri",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "imagemagick-common",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "imagemagick-doc",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libimage-magick-perl",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/7/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libimage-magick-q16-perl",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/8/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libimage-magick-q16hdri-perl",
"evidence": "/affected/9/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/9/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libmagick++-6-headers",
"evidence": "/affected/10/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/10/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libmagick++-6.q16-7",
"evidence": "/affected/11/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/11/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libmagick++-6.q16-dev",
"evidence": "/affected/12/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/12/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libmagick++-6.q16hdri-7",
"evidence": "/affected/13/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/13/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libmagick++-6.q16hdri-dev",
"evidence": "/affected/14/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/14/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libmagick++-dev",
"evidence": "/affected/15/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/15/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libmagickcore-6-arch-config",
"evidence": "/affected/16/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/16/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libmagickcore-6-headers",
"evidence": "/affected/17/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/17/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libmagickcore-6.q16-3",
"evidence": "/affected/18/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/18/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libmagickcore-6.q16-3-extra",
"evidence": "/affected/19/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/19/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libmagickcore-6.q16-dev",
"evidence": "/affected/20/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/20/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libmagickcore-6.q16hdri-3",
"evidence": "/affected/21/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/21/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libmagickcore-6.q16hdri-3-extra",
"evidence": "/affected/22/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/22/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libmagickcore-6.q16hdri-dev",
"evidence": "/affected/23/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/23/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libmagickcore-dev",
"evidence": "/affected/24/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/24/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libmagickwand-6-headers",
"evidence": "/affected/25/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/25/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libmagickwand-6.q16-3",
"evidence": "/affected/26/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/26/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libmagickwand-6.q16-dev",
"evidence": "/affected/27/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/27/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libmagickwand-6.q16hdri-3",
"evidence": "/affected/28/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/28/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libmagickwand-6.q16hdri-dev",
"evidence": "/affected/29/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/29/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libmagickwand-dev",
"evidence": "/affected/30/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/30/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "perlmagick",
"evidence": "/affected/31/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50",
"evidence": "/affected/31/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1790181479",
"aliases": [
"CLSA-2026-1790181479"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50"
}
]
}
],
"package": {
"name": "imagemagick",
"purl": "pkg:deb/tuxcare/imagemagick?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-2026-1790181479.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50"
}
]
}
],
"package": {
"name": "imagemagick-6-common",
"purl": "pkg:deb/tuxcare/imagemagick-6-common?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-2026-1790181479.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50"
}
]
}
],
"package": {
"name": "imagemagick-6-doc",
"purl": "pkg:deb/tuxcare/imagemagick-6-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-2026-1790181479.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50"
}
]
}
],
"package": {
"name": "imagemagick-6.q16",
"purl": "pkg:deb/tuxcare/imagemagick-6.q16?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-2026-1790181479.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50"
}
]
}
],
"package": {
"name": "imagemagick-6.q16hdri",
"purl": "pkg:deb/tuxcare/imagemagick-6.q16hdri?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-2026-1790181479.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50"
}
]
}
],
"package": {
"name": "imagemagick-common",
"purl": "pkg:deb/tuxcare/imagemagick-common?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-2026-1790181479.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50"
}
]
}
],
"package": {
"name": "imagemagick-doc",
"purl": "pkg:deb/tuxcare/imagemagick-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-2026-1790181479.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "8:6.9.7.4+dfsg-16ubuntu6.15+tuxcare.els50"
}
]
}
],
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"modified": "2026-10-26T09:32:04.219577722Z",
"provider": "osv",
"upstream": [
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],
"references": [
"https://errata.tuxcare.com/els_os/ubuntu18.04els/CLSA-2026-1790181479.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-93586"
]
},
"related_cves": [
{
"value": "CVE-2026-93586",
"evidence": "/upstream"
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],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 449582,
"published_at": "2026-09-23T16:38:11+00:00"
}