CVE-2026-57438

LOW
INFO Priority: 0.00 BB Relevance: 39/100
Published: 2026-06-25 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Local
AC: High
PR: None
UI: None
S: X
AT: None
VC: Low
VI: Low
VA: High

Description

Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, XInclude substitution performed by Nokogiri::XML::Node#do_xinclude replaced each <xi:include> in place, freeing the include node along with its children (such as <xi:fallback> and its descendants) and any namespaces declared on them. If an application had already exposed one of those nodes or namespaces to Ruby, the corresponding Ruby object was left pointing at freed memory. Using the object could result in invalid reads or writes to memory. This vulnerability is fixed in 1.19.4.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
nokogiri nokogiri < 1.19.4

Bug Bounty Relevance

39 / 100
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

2.2 / 10.0 v4.0
CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.12%
Raw Score 0.001250
Percentile 2.2%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00125
2026-10-28
0.00125

Intelligence Sources

nvd ref →