DEBIAN-CVE-2026-79772
Nokogiri versions before 1.19.1 fail to check the return value from xmlC14NExecute in the canonicalize method, returning an empty string on failure instead of raising an exception. Attackers can exploit this to bypass signature validation in downstream SAML libraries by providing invalid canonicalized XML that is incorrectly accepted as valid.
DEBIAN-CVE-2026-79772
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-2026-79772
ruby-nokogiri
Source reference: /affected/0/package/name
- Affected versions
- 1.13.10+dfsg-2
Source reference:
/affected/0/versions1.14.2+dfsg-1Source reference:
/affected/0/versions1.14.3+dfsg-1Source reference:
/affected/0/versions1.14.3+dfsg-2Source reference:
/affected/0/versions1.15.4+dfsg-1Source reference:
/affected/0/versions1.16.0+dfsg-1Source reference:
/affected/0/versions1.16.0+dfsg-2Source reference:
/affected/0/versions1.16.2+dfsg-1Source reference:
/affected/0/versions1.16.4+dfsg-1Source reference:
/affected/0/versions1.17.2+dfsg-1~exp1Source reference:
/affected/0/versions1.18.10+dfsg-1Source 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/versions1.19.4+dfsg-1Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
ruby-nokogiri
Source reference: /affected/2/package/name
- Affected versions
- 1.18.10+dfsg-1
Source reference:
/affected/2/versions1.18.10+dfsg-2Source reference:
/affected/2/versions1.18.10+dfsg-3Source reference:
/affected/2/versions1.18.2+dfsg-1Source reference:
/affected/2/versions - Fixed versions
- 1.19.1+dfsg-1
Source reference:
/affected/2/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=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"1.13.10+dfsg-2",
"1.14.2+dfsg-1",
"1.14.3+dfsg-1",
"1.14.3+dfsg-2",
"1.15.4+dfsg-1",
"1.16.0+dfsg-1",
"1.16.0+dfsg-2",
"1.16.2+dfsg-1",
"1.16.4+dfsg-1",
"1.17.2+dfsg-1~exp1",
"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-2026-79772.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"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-2026-79772.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.19.1+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"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-79772.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #58205 · Revision 1
- Added to Heist Feed
- Publisher date