CVE-2021-47996 This CVE ID has been rejected as a duplicate.
Not scored
Published
Updated
Check this codebase for CVE-2021-47996 and fix it if it is affected.
What it is: CVE-2021-47996 is a vulnerability in nokogiri, published on 25 Aug 2026.
Exploitation: There is no known exploitation of CVE-2021-47996 in the wild and no public exploit code.
Affected packages and fixed versions:
- nokogiri (RubyGems): affected all versions; fixed in 1.11.4
- nokogiri (RubyGems): affected all versions; fixed in 1.11.4
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2021-47996/ (Markdown: https://insights.sbomify.com/CVE-2021-47996/index.md)
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2021-47996?
CVE-2021-47996 is a vulnerability in nokogiri, published on 25 Aug 2026.
Official description
This CVE ID has been rejected as a duplicate.
Which versions are affected by CVE-2021-47996?
2 open source packages ship an affected version, including nokogiri.
| Package | Affected | Fixed in |
|---|---|---|
nokogiri RubyGems | All versions | 1.11.4 |
nokogiri RubyGems | All versions | 1.11.4 |
How do I fix CVE-2021-47996?
Upgrade nokogiri to 1.11.4 or later.
Is CVE-2021-47996 being exploited?
There is no known exploitation of CVE-2021-47996 in the wild and no public exploit code.
Sources
Also known as GHSA-593j-84wv-vpv9, GHSA-7rrm-v45f-jp64.