HighFix available
nss — security advisory
Incorrect boundary conditions in the Libraries component in NSS. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
- Products
- nss
- Affected versions
- 2:3.110-1, 2:3.110-1+deb13u1, 2:3.110-1+deb13u2, 2:3.111-1, 2:3.112-1, 2:3.114-1, 2:3.116-1, 2:3.117-1, 2:3.119-1, 2:3.120-1, 2:3.121-1, 2:3.123-1, 2:3.123.1-1, 2:3.87.1-1, 2:3.87.1-1+deb12u1, 2:3.87.1-1+deb12u2
- Fixed versions
- 2:3.110-1+deb13u3, 2:3.124-1, 2:3.87.1-1+deb12u3
- CVEs
- CVE-2026-12318
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 17:36 UTC · Revision 2
Source evidence
Incorrect boundary conditions in the Libraries component in NSS. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
osv:DEBIAN-CVE-2026-12318
nss
Fixed versions: 2:3.87.1-1+deb12u3
nss
Fixed versions: 2:3.110-1+deb13u3
nss
Fixed versions: 2:3.124-1
Complete source record
{
"id": "9a72eacdb4296fb35001d992ae96a822c6b768375fd1d9369913f6f66383fe57",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-12318",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2026-12318",
"summary": "Incorrect boundary conditions in the Libraries component in NSS. This vulnerability was fixed in Firefox 152 and Thunderbird 152.",
"evidence": "osv:DEBIAN-CVE-2026-12318",
"products": [
{
"name": {
"value": "nss",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2:3.87.1-1+deb12u3",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": [
{
"value": "2:3.87.1-1",
"evidence": "/affected/0/versions"
},
{
"value": "2:3.87.1-1+deb12u1",
"evidence": "/affected/0/versions"
},
{
"value": "2:3.87.1-1+deb12u2",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "nss",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2:3.110-1+deb13u3",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": [
{
"value": "2:3.110-1",
"evidence": "/affected/1/versions"
},
{
"value": "2:3.110-1+deb13u1",
"evidence": "/affected/1/versions"
},
{
"value": "2:3.110-1+deb13u2",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "nss",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2:3.124-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": [
{
"value": "2:3.110-1",
"evidence": "/affected/2/versions"
},
{
"value": "2:3.111-1",
"evidence": "/affected/2/versions"
},
{
"value": "2:3.112-1",
"evidence": "/affected/2/versions"
},
{
"value": "2:3.114-1",
"evidence": "/affected/2/versions"
},
{
"value": "2:3.116-1",
"evidence": "/affected/2/versions"
},
{
"value": "2:3.117-1",
"evidence": "/affected/2/versions"
},
{
"value": "2:3.119-1",
"evidence": "/affected/2/versions"
},
{
"value": "2:3.120-1",
"evidence": "/affected/2/versions"
},
{
"value": "2:3.121-1",
"evidence": "/affected/2/versions"
},
{
"value": "2:3.123-1",
"evidence": "/affected/2/versions"
},
{
"value": "2:3.123.1-1",
"evidence": "/affected/2/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2026-12318",
"aliases": [
"DEBIAN-CVE-2026-12318"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2:3.87.1-1+deb12u3"
}
]
}
],
"package": {
"name": "nss",
"purl": "pkg:deb/debian/nss?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"2:3.87.1-1",
"2:3.87.1-1+deb12u1",
"2:3.87.1-1+deb12u2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-12318.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2:3.110-1+deb13u3"
}
]
}
],
"package": {
"name": "nss",
"purl": "pkg:deb/debian/nss?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"2:3.110-1",
"2:3.110-1+deb13u1",
"2:3.110-1+deb13u2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-12318.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2:3.124-1"
}
]
}
],
"package": {
"name": "nss",
"purl": "pkg:deb/debian/nss?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"2:3.110-1",
"2:3.111-1",
"2:3.112-1",
"2:3.114-1",
"2:3.116-1",
"2:3.117-1",
"2:3.119-1",
"2:3.120-1",
"2:3.121-1",
"2:3.123-1",
"2:3.123.1-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-12318.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-27T09:47:29.885452890Z",
"provider": "osv",
"upstream": [
"CVE-2026-12318"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2026-12318"
]
},
"related_cves": [
{
"value": "CVE-2026-12318",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 460866,
"published_at": "2026-06-16T13:16:32.463+00:00"
}