High
emacs, emacs24 and 3 more products — security advisory
GNU Emacs before 31.2 (and TRAMP through 2.8.2) allows OS command injection via a filename because tramp-user-regexp has an incomplete list of disallowed inputs. NOTE: this issue exists because of an incomplete fix for CVE-2026-79992.
- Products
- emacs, emacs24, emacs25, xemacs21, xemacs21-packages
- Affected versions
- 1:26.3+1-1ubuntu1, 1:26.3+1-1ubuntu2, 1:26.3+1-1ubuntu2+esm1, 1:26.3+1-1ubuntu2+esm2, 1:27.1+1-3ubuntu3, 1:27.1+1-3ubuntu5, 1:27.1+1-3ubuntu5.1, 1:27.1+1-3ubuntu5.2, 1:27.1+1-3ubuntu5.2+esm1, 1:29.1+1-5ubuntu1, 1:29.2+1-1ubuntu1, 1:29.2+1-2ubuntu4, 1:29.3+1-1ubuntu2, 1:29.3+1-1ubuntu2+esm1, 1:29.3+1-1ubuntu2+esm3, 1:29.3+1-1ubuntu2+esm4, 1:30.1+1-9ubuntu1, 1:30.2+1-11ubuntu1, 1:30.2+1-1ubuntu2, 1:30.2+1-2ubuntu1, 1:30.2+1-2ubuntu1+esm1, 1:30.2+1-6ubuntu1, 2009.02.17.dfsg.2-2, 2009.02.17.dfsg.2-4, 2009.02.17.dfsg.2-5, 2009.02.17.dfsg.3-2, 2009.02.17.dfsg.3-3, 2009.02.17.dfsg.3-3build1, 21.4.22-14ubuntu1, 21.4.22-4ubuntu3, 21.4.24-12, 21.4.24-12build2, 21.4.24-12build3, 21.4.24-4ubuntu1, 21.4.24-5ubuntu1, 21.4.24-8build1, 21.4.24-9, 21.4.24-9ubuntu2, 24.5+1-1ubuntu2, 24.5+1-1ubuntu4, 24.5+1-1ubuntu5, 24.5+1-1ubuntu6, 24.5+1-1ubuntu7, 24.5+1-6ubuntu1, 24.5+1-6ubuntu1.1, 24.5+1-6ubuntu1.1+esm1, 24.5+1-6ubuntu1.1+esm2, 24.5+1-6ubuntu1.1+esm3, 24.5+1-6ubuntu1.1+esm4, 25.2+1-6, 25.2+1-6ubuntu0.1~esm2
- Fixed versions
- Not specified
- CVEs
- CVE-2026-108976
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 02:54 UTC · Revision 1
Source evidence
GNU Emacs before 31.2 (and TRAMP through 2.8.2) allows OS command injection via a filename because tramp-user-regexp has an incomplete list of disallowed inputs. NOTE: this issue exists because of an incomplete fix for CVE-2026-79992.
osv:UBUNTU-CVE-2026-108976
emacs24
Fixed versions: Not specified
xemacs21
Fixed versions: Not specified
xemacs21-packages
Fixed versions: Not specified
emacs25
Fixed versions: Not specified
xemacs21
Fixed versions: Not specified
xemacs21-packages
Fixed versions: Not specified
emacs
Fixed versions: Not specified
xemacs21
Fixed versions: Not specified
xemacs21-packages
Fixed versions: Not specified
xemacs21
Fixed versions: Not specified
xemacs21-packages
Fixed versions: Not specified
emacs
Fixed versions: Not specified
xemacs21
Fixed versions: Not specified
xemacs21-packages
Fixed versions: Not specified
emacs
Fixed versions: Not specified
emacs
Fixed versions: Not specified
xemacs21
Fixed versions: Not specified
xemacs21-packages
Fixed versions: Not specified
xemacs21
Fixed versions: Not specified
xemacs21-packages
Fixed versions: Not specified
emacs
Fixed versions: Not specified
Complete source record
{
"id": "1575ac1b8e95692fbb7f7a8f685be23a063e2eab8c4d86107bf5d356c568d34d",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-108976",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-108976",
"summary": "GNU Emacs before 31.2 (and TRAMP through 2.8.2) allows OS command injection via a filename because tramp-user-regexp has an incomplete list of disallowed inputs. NOTE: this issue exists because of an incomplete fix for CVE-2026-79992.",
"evidence": "osv:UBUNTU-CVE-2026-108976",
"products": [
{
"name": {
"value": "emacs24",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "24.5+1-1ubuntu2",
"evidence": "/affected/0/versions"
},
{
"value": "24.5+1-1ubuntu4",
"evidence": "/affected/0/versions"
},
{
"value": "24.5+1-1ubuntu5",
"evidence": "/affected/0/versions"
},
{
"value": "24.5+1-1ubuntu6",
"evidence": "/affected/0/versions"
},
{
"value": "24.5+1-1ubuntu7",
"evidence": "/affected/0/versions"
},
{
"value": "24.5+1-6ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "24.5+1-6ubuntu1.1",
"evidence": "/affected/0/versions"
},
{
"value": "24.5+1-6ubuntu1.1+esm1",
"evidence": "/affected/0/versions"
},
{
"value": "24.5+1-6ubuntu1.1+esm2",
"evidence": "/affected/0/versions"
},
{
"value": "24.5+1-6ubuntu1.1+esm3",
"evidence": "/affected/0/versions"
},
{
"value": "24.5+1-6ubuntu1.1+esm4",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "xemacs21",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "21.4.22-4ubuntu3",
"evidence": "/affected/1/versions"
},
{
"value": "21.4.22-14ubuntu1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "xemacs21-packages",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2009.02.17.dfsg.2-2",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "emacs25",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "25.2+1-6",
"evidence": "/affected/3/versions"
},
{
"value": "25.2+1-6ubuntu0.1~esm2",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "xemacs21",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "21.4.24-4ubuntu1",
"evidence": "/affected/4/versions"
},
{
"value": "21.4.24-5ubuntu1",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "xemacs21-packages",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2009.02.17.dfsg.2-4",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "emacs",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1:26.3+1-1ubuntu1",
"evidence": "/affected/6/versions"
},
{
"value": "1:26.3+1-1ubuntu2",
"evidence": "/affected/6/versions"
},
{
"value": "1:26.3+1-1ubuntu2+esm1",
"evidence": "/affected/6/versions"
},
{
"value": "1:26.3+1-1ubuntu2+esm2",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "xemacs21",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "21.4.24-8build1",
"evidence": "/affected/7/versions"
},
{
"value": "21.4.24-9",
"evidence": "/affected/7/versions"
}
]
},
{
"name": {
"value": "xemacs21-packages",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2009.02.17.dfsg.2-4",
"evidence": "/affected/8/versions"
},
{
"value": "2009.02.17.dfsg.2-5",
"evidence": "/affected/8/versions"
}
]
},
{
"name": {
"value": "xemacs21",
"evidence": "/affected/9/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "21.4.24-9ubuntu2",
"evidence": "/affected/9/versions"
}
]
},
{
"name": {
"value": "xemacs21-packages",
"evidence": "/affected/10/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2009.02.17.dfsg.2-5",
"evidence": "/affected/10/versions"
}
]
},
{
"name": {
"value": "emacs",
"evidence": "/affected/11/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1:27.1+1-3ubuntu3",
"evidence": "/affected/11/versions"
},
{
"value": "1:27.1+1-3ubuntu5",
"evidence": "/affected/11/versions"
},
{
"value": "1:27.1+1-3ubuntu5.1",
"evidence": "/affected/11/versions"
},
{
"value": "1:27.1+1-3ubuntu5.2",
"evidence": "/affected/11/versions"
},
{
"value": "1:27.1+1-3ubuntu5.2+esm1",
"evidence": "/affected/11/versions"
}
]
},
{
"name": {
"value": "xemacs21",
"evidence": "/affected/12/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "21.4.24-12",
"evidence": "/affected/12/versions"
},
{
"value": "21.4.24-12build2",
"evidence": "/affected/12/versions"
},
{
"value": "21.4.24-12build3",
"evidence": "/affected/12/versions"
}
]
},
{
"name": {
"value": "xemacs21-packages",
"evidence": "/affected/13/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2009.02.17.dfsg.3-2",
"evidence": "/affected/13/versions"
},
{
"value": "2009.02.17.dfsg.3-3",
"evidence": "/affected/13/versions"
}
]
},
{
"name": {
"value": "emacs",
"evidence": "/affected/14/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1:29.1+1-5ubuntu1",
"evidence": "/affected/14/versions"
},
{
"value": "1:29.2+1-1ubuntu1",
"evidence": "/affected/14/versions"
},
{
"value": "1:29.2+1-2ubuntu4",
"evidence": "/affected/14/versions"
},
{
"value": "1:29.3+1-1ubuntu2",
"evidence": "/affected/14/versions"
},
{
"value": "1:29.3+1-1ubuntu2+esm1",
"evidence": "/affected/14/versions"
},
{
"value": "1:29.3+1-1ubuntu2+esm3",
"evidence": "/affected/14/versions"
},
{
"value": "1:29.3+1-1ubuntu2+esm4",
"evidence": "/affected/14/versions"
}
]
},
{
"name": {
"value": "emacs",
"evidence": "/affected/15/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1:30.2+1-2ubuntu1",
"evidence": "/affected/15/versions"
},
{
"value": "1:30.2+1-6ubuntu1",
"evidence": "/affected/15/versions"
},
{
"value": "1:30.2+1-11ubuntu1",
"evidence": "/affected/15/versions"
}
]
},
{
"name": {
"value": "xemacs21",
"evidence": "/affected/16/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "21.4.24-12build3",
"evidence": "/affected/16/versions"
}
]
},
{
"name": {
"value": "xemacs21-packages",
"evidence": "/affected/17/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2009.02.17.dfsg.3-3build1",
"evidence": "/affected/17/versions"
}
]
},
{
"name": {
"value": "xemacs21",
"evidence": "/affected/18/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "21.4.24-12build3",
"evidence": "/affected/18/versions"
}
]
},
{
"name": {
"value": "xemacs21-packages",
"evidence": "/affected/19/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2009.02.17.dfsg.3-3",
"evidence": "/affected/19/versions"
},
{
"value": "2009.02.17.dfsg.3-3build1",
"evidence": "/affected/19/versions"
}
]
},
{
"name": {
"value": "emacs",
"evidence": "/affected/20/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1:30.1+1-9ubuntu1",
"evidence": "/affected/20/versions"
},
{
"value": "1:30.2+1-1ubuntu2",
"evidence": "/affected/20/versions"
},
{
"value": "1:30.2+1-2ubuntu1",
"evidence": "/affected/20/versions"
},
{
"value": "1:30.2+1-2ubuntu1+esm1",
"evidence": "/affected/20/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2026-108976",
"aliases": [
"UBUNTU-CVE-2026-108976"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "emacs24",
"purl": "pkg:deb/ubuntu/emacs24?arch=source&distro=esm-infra%2Fxenial",
"ecosystem": "Ubuntu:Pro:16.04:LTS"
},
"versions": [
"24.5+1-1ubuntu2",
"24.5+1-1ubuntu4",
"24.5+1-1ubuntu5",
"24.5+1-1ubuntu6",
"24.5+1-1ubuntu7",
"24.5+1-6ubuntu1",
"24.5+1-6ubuntu1.1",
"24.5+1-6ubuntu1.1+esm1",
"24.5+1-6ubuntu1.1+esm2",
"24.5+1-6ubuntu1.1+esm3",
"24.5+1-6ubuntu1.1+esm4"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-108976.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "emacs24",
"binary_version": "24.5+1-6ubuntu1.1+esm4"
},
{
"binary_name": "emacs24-bin-common",
"binary_version": "24.5+1-6ubuntu1.1+esm4"
},
{
"binary_name": "emacs24-common",
"binary_version": "24.5+1-6ubuntu1.1+esm4"
},
{
"binary_name": "emacs24-el",
"binary_version": "24.5+1-6ubuntu1.1+esm4"
},
{
"binary_name": "emacs24-lucid",
"binary_version": "24.5+1-6ubuntu1.1+esm4"
},
{
"binary_name": "emacs24-nox",
"binary_version": "24.5+1-6ubuntu1.1+esm4"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "xemacs21",
"purl": "pkg:deb/ubuntu/xemacs21?arch=source&distro=xenial",
"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
"21.4.22-4ubuntu3",
"21.4.22-14ubuntu1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-108976.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "xemacs21",
"binary_version": "21.4.22-14ubuntu1"
},
{
"binary_name": "xemacs21-bin",
"binary_version": "21.4.22-14ubuntu1"
},
{
"binary_name": "xemacs21-mule",
"binary_version": "21.4.22-14ubuntu1"
},
{
"binary_name": "xemacs21-mule-canna-wnn",
"binary_version": "21.4.22-14ubuntu1"
},
{
"binary_name": "xemacs21-nomule",
"binary_version": "21.4.22-14ubuntu1"
},
{
"binary_name": "xemacs21-support",
"binary_version": "21.4.22-14ubuntu1"
},
{
"binary_name": "xemacs21-supportel",
"binary_version": "21.4.22-14ubuntu1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "xemacs21-packages",
"purl": "pkg:deb/ubuntu/xemacs21-packages?arch=source&distro=xenial",
"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
"2009.02.17.dfsg.2-2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-108976.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "xemacs21-basesupport",
"binary_version": "2009.02.17.dfsg.2-2"
},
{
"binary_name": "xemacs21-basesupport-el",
"binary_version": "2009.02.17.dfsg.2-2"
},
{
"binary_name": "xemacs21-mulesupport",
"binary_version": "2009.02.17.dfsg.2-2"
},
{
"binary_name": "xemacs21-mulesupport-el",
"binary_version": "2009.02.17.dfsg.2-2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "emacs25",
"purl": "pkg:deb/ubuntu/emacs25?arch=source&distro=esm-infra%2Fbionic",
"ecosystem": "Ubuntu:Pro:18.04:LTS"
},
"versions": [
"25.2+1-6",
"25.2+1-6ubuntu0.1~esm2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-108976.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "emacs25",
"binary_version": "25.2+1-6ubuntu0.1~esm2"
},
{
"binary_name": "emacs25-bin-common",
"binary_version": "25.2+1-6ubuntu0.1~esm2"
},
{
"binary_name": "emacs25-common",
"binary_version": "25.2+1-6ubuntu0.1~esm2"
},
{
"binary_name": "emacs25-el",
"binary_version": "25.2+1-6ubuntu0.1~esm2"
},
{
"binary_name": "emacs25-lucid",
"binary_version": "25.2+1-6ubuntu0.1~esm2"
},
{
"binary_name": "emacs25-nox",
"binary_version": "25.2+1-6ubuntu0.1~esm2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "xemacs21",
"purl": "pkg:deb/ubuntu/xemacs21?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"21.4.24-4ubuntu1",
"21.4.24-5ubuntu1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-108976.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "xemacs21",
"binary_version": "21.4.24-5ubuntu1"
},
{
"binary_name": "xemacs21-bin",
"binary_version": "21.4.24-5ubuntu1"
},
{
"binary_name": "xemacs21-mule",
"binary_version": "21.4.24-5ubuntu1"
},
{
"binary_name": "xemacs21-mule-canna-wnn",
"binary_version": "21.4.24-5ubuntu1"
},
{
"binary_name": "xemacs21-nomule",
"binary_version": "21.4.24-5ubuntu1"
},
{
"binary_name": "xemacs21-support",
"binary_version": "21.4.24-5ubuntu1"
},
{
"binary_name": "xemacs21-supportel",
"binary_version": "21.4.24-5ubuntu1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "xemacs21-packages",
"purl": "pkg:deb/ubuntu/xemacs21-packages?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"2009.02.17.dfsg.2-4"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-108976.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "xemacs21-basesupport",
"binary_version": "2009.02.17.dfsg.2-4"
},
{
"binary_name": "xemacs21-basesupport-el",
"binary_version": "2009.02.17.dfsg.2-4"
},
{
"binary_name": "xemacs21-mulesupport",
"binary_version": "2009.02.17.dfsg.2-4"
},
{
"binary_name": "xemacs21-mulesupport-el",
"binary_version": "2009.02.17.dfsg.2-4"
}
]
}
},
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"modified": "2026-10-17T12:59:48.594730834Z",
"provider": "osv",
"upstream": [
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],
"references": [
"https://ubuntu.com/security/CVE-2026-108976",
"https://www.cve.org/CVERecord?id=CVE-2026-108976",
"https://ftp.gnu.org/gnu/tramp/tramp-2.8.2.tar.gz",
"https://www.openwall.com/lists/oss-security/2026/08/21/1",
"https://www.openwall.com/lists/oss-security/2026/10/11/1"
]
},
"related_cves": [
{
"value": "CVE-2026-108976",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 359795,
"published_at": "2026-10-11T21:16:00+00:00"
}