NIST deprecates RSA-2048 from 2030. Find every one of them before attackers do.
💎
💎 RubyGems
Not in CISA KEV
HIGH severity

Nokogiri is vulnerable to XML External Entity (XXE) attackGHSA-6wj9-77wq-jq7p

HIGH

GHSA-6wj9-77wq-jq7p is a high-severity (CVSS 7.5) CWE-776 vulnerability in nokogiri. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for nokogiri — see the affected versions and patch details below.

Also known asCVE-2012-6685
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Nov 5, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
2.2%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs82th percentile — riskier than 82% of all scored CVEsHighest risk
0.00%0.91%1.81%2.72%0.3%2.2%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
💎nokogiri

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects RubyGems packages — download data is not available via public APIs for these ecosystems.

Description

Nokogiri before 1.5.4 is vulnerable to XXE attacks.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
💎RubyGemsnokogiriall versions1.5.4bundle update nokogiri --conservative

Affected Products

8 products · 9 configurations
Application
nokogirinokogiri
< 1.5.4
range
Application
cloudforms management engineredhat
1 version
5.0
OS
enterprise mrgredhat
1 version
2.0
Application
openshiftredhat
1 version
2.0
Application
openstackredhat
2 versions
4.06.0
Application
openstack foremanredhat
all
Exploits & PoCs
1

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Nokogiri before 1.5.4 is vulnerable to XXE attacks

github.comNVDJul 2021

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for nokogiri, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update nokogiri to 1.5.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-6wj9-77wq-jq7p is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatModerate

This issue affects the versions of ruby193-rubygem-nokogiri as shipped with Red Hat Satellite 6 and Red Hat OpenStack 6. Red Hat Product Security has rated this issue as having moderate security impact. A future update may address this issue. Red Hat Product Security has rated this issue as having no security impact…

ProductFixed inAdvisory
CloudForms Management Engine 5.10ansible-runner-0:1.1.2-2.el7arRHSA-2019:0212

Frequently Asked Questions

Nokogiri before 1.5.4 is vulnerable to XXE attacks.
O3 Security · Impact-Aware SCA

Is GHSA-6wj9-77wq-jq7p in your dependencies?

Find it across RubyGems, including transitive dependencies.

Scan my dependencies How O3 SCA works
Nokogiri is vulnerable to XML External Entity (XXE) attack