cve.bz

CVE-2019-5477

9.8 criticalEPSS 5.9%

Critical (9.8). EPSS 5.9% chance of exploitation in the next 30 days. Fixed in nokogiri 1.10.4.

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.

Severity

CVSS 3.1

9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
5.9% chance of exploitation in the next 30 days; higher than 93% of CVEs (scores of 2026-11-01)
CWE
CWE-78
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-cr5j-953j-xw5pRubyGemsnokogiri<1.10.41.10.4
GHSA-cr5j-953j-xw5pRubyGemsrexical<1.0.71.0.7

References

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