CVE-2019-5477

highpriority · track · 41EPSS 0.059 · 93 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

5.90% (93rd) EPSS

CVSS 7.5 · high

Is it mine?

22 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-28

A command injection vulnerability in Nokogiri v1.10.3 and earlier allows commands to be executed in a subprocess via Ruby's `Kernel.open` method. Processes are vulnerable only if the undocumented method `Nokogiri::CSS::Tokenizer#load_file` is being called with unsafe user input as the filename. This vulnerability appears in code generated by the Rexical gem versions v1.0.6 and earlier. Rexical is used by Nokogiri to generate lexical scanner code for parsing CSS queries. The underlying vulnerability was addressed in Rexical v1.0.7 and Nokogiri upgraded to this version of Rexical in Nokogiri v1.10.4.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

Fixedruby4.0-rubygem-nokogiri-0:1.18.9-1.4.aarch64 as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedruby4.0-rubygem-nokogiri-0:1.18.9-1.4.ppc64le as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedruby4.0-rubygem-nokogiri-0:1.18.9-1.4.s390x as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedruby4.0-rubygem-nokogiri-0:1.18.9-1.4.x86_64 as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.18.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · SUSE Product Security

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-78USprimaryCWE-77USCWE-78US

affected products (22)

Products and version ranges known to be affected.

n/a Nokogiri (ruby gem)≤ Fixed in v1.10.4enisa_euvdEU
Canonical Ltd. Ubuntu≤ 19.04fstec_bduRU
Canonical Ltd. Ubuntu≤ 16.04 LTSfstec_bduRU
Canonical Ltd. Ubuntu≤ 18.04 LTSfstec_bduRU
Canonical Ltd. Ubuntu≤ 19.10fstec_bduRU
Novell Inc. HPE Helion Openstack≤ 8fstec_bduRU
Novell Inc. SUSE Enterprise Storage≤ 4fstec_bduRU
Novell Inc. SUSE OpenStack Cloud≤ 8fstec_bduRU
Novell Inc. SUSE OpenStack Cloud≤ 7fstec_bduRU
Novell Inc. SUSE OpenStack Cloud Crowbar≤ 8fstec_bduRU
АО «НППКТ» ОСОН ОСнова Оnyx≤ 2.6fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 8fstec_bduRU
Сообщество свободного программного обеспечения Nokogiri≤ 1.10.3fstec_bduRU
canonical ubuntu linux= 16.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 18.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 19.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 19.10nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
debian debian linux= 10.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
debian debian linux= 8.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
nokogiri nokogiri≤ 1.10.3nvdUScpe:2.3:a:nokogiri:nokogiri:*:*:*:*:*:*:*:*

showing 20 of 22

advisories (2)

Vendor and ecosystem advisories describing this.

openSUSE-SU-2026:10356-1ruby4.0-rubygem-nokogiri-1.18.9-1.4 on GA media2026-03-13csaf · suse_csafDE
ruby4.0-rubygem-nokogiri-1.18.9-1.4 on GA media
GHSA-cr5j-953j-xw5pNokogiri Command Injection Vulnerability2019-08-19ghsa · osvUS
A command injection vulnerability in Nokogiri v1.10.3 and earlier allows commands to be executed in a subprocess via Ruby's `Kernel.open` method. Processes are vulnerable only if the undocumented method `Nokogiri::CSS::Tokenizer#load_file` is being called with unsafe user input as the filename. This vulnerability appears in code generated by the Rexical gem versions v1.0.6 and earlier. Rexical is used by Nokogiri to generate lexical scanner code for parsing CSS queries. The underlying vulnerability was addressed in Rexical v1.0.7 and Nokogiri upgraded to this version of Rexical in Nokogiri v1.10.4.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd suse_csaf osv NVD CVE.org MITRE

published 2019-08-16modified 2026-06-17

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references (36)

External citations — patches, advisories, analysis.

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