DEBIAN-CVE-2026-79769
Nokogiri versions before 1.19.4 contain a possible invalid (out-of-bounds) memory read in the protected internal Node#initialize_copy_with_args helper behind Node#dup and #clone, which unwrapped its source argument as an xmlNode without a type check. If application code calls this protected method with a non-Node argument (e.g., a Namespace), it reads an xmlNs out of bounds, crashing the process. This is only triggerable by a programming error and cannot be triggered by untrusted input or normal use of the public API. Only CRuby is affected. Version 1.19.4 adds a type check and raises TypeError.
DEBIAN-CVE-2026-79769
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-79769
ruby-nokogiri
Source reference: /affected/0/package/name
- Affected versions
- 1.18.10+dfsg-1
Source reference:
/affected/0/versions1.18.10+dfsg-2Source reference:
/affected/0/versions1.18.10+dfsg-3Source reference:
/affected/0/versions1.18.2+dfsg-1Source reference:
/affected/0/versions1.19.1+dfsg-1Source reference:
/affected/0/versions1.19.3+dfsg-1Source reference:
/affected/0/versions1.19.4+dfsg-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
ruby-nokogiri
Source reference: /affected/1/package/name
- Affected versions
- 1.18.10+dfsg-1
Source reference:
/affected/1/versions1.18.10+dfsg-2Source reference:
/affected/1/versions1.18.10+dfsg-3Source reference:
/affected/1/versions1.18.2+dfsg-1Source reference:
/affected/1/versions1.19.1+dfsg-1Source reference:
/affected/1/versions1.19.3+dfsg-1Source reference:
/affected/1/versions - Fixed versions
- 1.19.4+dfsg-1
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ruby-nokogiri",
"purl": "pkg:deb/debian/ruby-nokogiri?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"1.18.10+dfsg-1",
"1.18.10+dfsg-2",
"1.18.10+dfsg-3",
"1.18.2+dfsg-1",
"1.19.1+dfsg-1",
"1.19.3+dfsg-1",
"1.19.4+dfsg-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-79769.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.19.4+dfsg-1"
}
]
}
],
"package": {
"name": "ruby-nokogiri",
"purl": "pkg:deb/debian/ruby-nokogiri?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"1.18.10+dfsg-1",
"1.18.10+dfsg-2",
"1.18.10+dfsg-3",
"1.18.2+dfsg-1",
"1.19.1+dfsg-1",
"1.19.3+dfsg-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-79769.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]- Related CVEs
- CVE-2026-79769
Source reference:
/upstream
Publisher severity
high
Source reference: /severity/0/score
- Event
- #81618 · Revision 1
- Added to Heist Feed
- Publisher date