CVE-2023-46035 svg_optimizer rubygem external XML entity (XXE) vulnerability
Medium 5.9
Published
Updated
Check this codebase for CVE-2023-46035 and fix it if it is affected.
What it is: CVE-2023-46035 is a medium-severity vulnerability in fnando svg_optimizer, published on 14 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-46035 in the wild and no public exploit code.
Affected packages and fixed versions:
- svg_optimizer (RubyGems): affected from 0.2.6; fixed in 0.3.0
- svg_optimizer (RubyGems): affected from 0.2.6; fixed in 0.3.0
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-2023-46035/ (Markdown: https://insights.sbomify.com/CVE-2023-46035/index.md)
Attackers can cause denial of service or read sensitive data via entity expansion in untrusted SVG documents using the svg_optimizer Ruby gem.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-46035?
CVE-2023-46035 is a medium-severity vulnerability in fnando svg_optimizer, published on 14 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The svg_optimizer gem before 0.3.0 for Ruby performs entity expansion on untrusted documents.
Weakness: CWE-776
Which versions are affected by CVE-2023-46035?
2 open source packages ship an affected version, including svg_optimizer.
| Package | Affected | Fixed in |
|---|---|---|
svg_optimizer RubyGems | From 0.2.6 | 0.3.0 |
svg_optimizer RubyGems | From 0.2.6 | 0.3.0 |
How do I fix CVE-2023-46035?
Upgrade svg_optimizer to 0.3.0 or later.
Is CVE-2023-46035 being exploited?
There is no known exploitation of CVE-2023-46035 in the wild and no public exploit code.
Sources
Also known as GHSA-6hvg-62q8-95v7.