CVE-2025-71406 — Vulnerability in nokogiri — CVE Details

HIGH

Nokogiri updates packaged libxslt to v1.1.43 to resolve multiple CVEs

Published March 14, 2025Updated September 10, 2026Source: osv

Summary

## Summary Nokogiri v1.18.4 upgrades its dependency libxslt to [v1.1.43](https://gitlab.gnome.org/GNOME/libxslt/-/releases/v1.1.43). libxslt v1.1.43 resolves: - CVE-2025-24855: Fix use-after-free of XPath context node - CVE-2024-55549: Fix UAF related to excluded namespaces ## Impact ### CVE-2025-24855 - "Use-after-free due to xsltEvalXPathStringNs leaking xpathCtxt->node" - MITRE has rated this 7.8 High CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H - Upstream report: https://gitlab.gnome.org/GNOME/libxslt/-/issues/128 - NVD entry: https://nvd.nist.gov/vuln/detail/CVE-2025-24855 ### CVE-2024-55549 - "Use-after-free related to excluded result prefixes" - MITRE has rated this 7.8 High CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H - Upstream report: https://gitlab.gnome.org/GNOME/libxslt/-/issues/127 - NVD entry: https://nvd.nist.gov/vuln/detail/CVE-2024-55549

Advisory Timeline

First published March 14, 2025 (577 days ago).
Last revised September 10, 2026 — 544 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Bundler

Update nokogiri to 1.18.4 or later

gem install nokogiri -v 1.18.4

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: rubygems (1).

Package	Ecosystem	Affected	Fixed In
nokogiri	rubygems	1.0.0, 1.0.1, 1.0.2, 1.0.3 (+179 more)	1.18.4

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CWE-1395
View on MITRE
CWE-416
Use After FreeMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 7.8 score means for each attack dimension.

Attack Vector

Local

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

High

Availability

High

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H

References

Frequently Asked Questions

What is CVE-2025-71406?: Nokogiri updates packaged libxslt to v1.1.43 to resolve multiple CVEs This vulnerability has been assigned a severity rating of HIGH (CVSS score: 7.8/10).
How do I check if my project is affected by CVE-2025-71406?: CVE-2025-71406 affects nokogiri. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2025-71406 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score

7.8

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-mrxw-mxhj-p664

Related CVEs

CVE-2018-14404
HIGH
Nokogiri NULL Pointer Dereference
CVE-2012-6685
HIGH
Nokogiri is vulnerable to XML External Entity (XXE) attack
CVE-2020-7595
HIGH
libxml as used in Nokogiri has an infinite loop in a certain end-of-file situation
CVE-2015-8806
HIGH
Denial of service or RCE from libxml2 and libxslt
CVE-2017-9050
HIGH
Out-of-bounds read in nokogiri
CVE-2026-79770
HIGH
Nokogiri CSS selector tokenizer has regular expression backtracking
CVE-2017-18258
MEDIUM
Uncontrolled resource consumption in nokogiri
CVE-2026-57434
LOW
Nokogiri: Null Pointer Dereference calling methods on uninitialized wrapper classes

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