ubuntu-cve-2026-6861
Vulnerability from osv_ubuntu
Published
2026-04-22 14:17
Modified
2026-05-28 06:41
Summary
Details
A flaw was found in GNU Emacs. This vulnerability, a memory corruption issue, occurs when Emacs processes specially crafted SVG (Scalable Vector Graphics) CSS (Cascading Style Sheets) data. A local user could exploit this by convincing a victim to open a malicious SVG file, which may lead to a denial of service (DoS) or potentially information disclosure.
Severity
6.1 (Medium)
7.1 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
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{
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{
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},
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},
{
"binary_name": "emacs-el",
"binary_version": "1:30.2+1-2ubuntu1"
},
{
"binary_name": "emacs-gtk",
"binary_version": "1:30.2+1-2ubuntu1"
},
{
"binary_name": "emacs-lucid",
"binary_version": "1:30.2+1-2ubuntu1"
},
{
"binary_name": "emacs-nox",
"binary_version": "1:30.2+1-2ubuntu1"
},
{
"binary_name": "emacs-pgtk",
"binary_version": "1:30.2+1-2ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "emacs",
"purl": "pkg:deb/ubuntu/emacs@1:30.2+1-2ubuntu1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:30.1+1-9ubuntu1",
"1:30.2+1-1ubuntu2",
"1:30.2+1-2ubuntu1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "xemacs21",
"binary_version": "21.4.24-12build3"
},
{
"binary_name": "xemacs21-bin",
"binary_version": "21.4.24-12build3"
},
{
"binary_name": "xemacs21-mule",
"binary_version": "21.4.24-12build3"
},
{
"binary_name": "xemacs21-mule-canna-wnn",
"binary_version": "21.4.24-12build3"
},
{
"binary_name": "xemacs21-nomule",
"binary_version": "21.4.24-12build3"
},
{
"binary_name": "xemacs21-support",
"binary_version": "21.4.24-12build3"
},
{
"binary_name": "xemacs21-supportel",
"binary_version": "21.4.24-12build3"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "xemacs21",
"purl": "pkg:deb/ubuntu/xemacs21@21.4.24-12build3?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"21.4.24-12build3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "xemacs21-basesupport",
"binary_version": "2009.02.17.dfsg.3-3build1"
},
{
"binary_name": "xemacs21-basesupport-el",
"binary_version": "2009.02.17.dfsg.3-3build1"
},
{
"binary_name": "xemacs21-mulesupport",
"binary_version": "2009.02.17.dfsg.3-3build1"
},
{
"binary_name": "xemacs21-mulesupport-el",
"binary_version": "2009.02.17.dfsg.3-3build1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "xemacs21-packages",
"purl": "pkg:deb/ubuntu/xemacs21-packages@2009.02.17.dfsg.3-3build1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2009.02.17.dfsg.3-3",
"2009.02.17.dfsg.3-3build1"
]
}
],
"aliases": [],
"details": "A flaw was found in GNU Emacs. This vulnerability, a memory corruption issue, occurs when Emacs processes specially crafted SVG (Scalable Vector Graphics) CSS (Cascading Style Sheets) data. A local user could exploit this by convincing a victim to open a malicious SVG file, which may lead to a denial of service (DoS) or potentially information disclosure.",
"id": "UBUNTU-CVE-2026-6861",
"modified": "2026-05-28T06:41:29Z",
"published": "2026-04-22T14:17:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-6861"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6861"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2459992"
},
{
"type": "REPORT",
"url": "https://debbugs.gnu.org/80851"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-6861"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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