CVE-2025-11058 — xml2rfc
Fix: ietf-tools/xml2rfc@f2b245bCVE-2025-11058 is a security vulnerability in xml2rfc. A fix is available for xml2rfc — see the affected versions and patch details below.
xml2rfc has an arbitrary file read vulnerability
Real-World Exposure
xml2rfcReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.
Description
Impact
When generating PDF files, this vulnerability allows an attacker to read arbitrary files from the filesystem by injecting malicious link element into the XML.
Workarounds
Test untrusted input with link elements with rel="attachment" before processing.
Credits
This vulnerability was reported by Mohamed Ouad from Doyensec.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐍PyPI | xml2rfc | all versions | 3.30.1pip install --upgrade 'xml2rfc==3.30.1' |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for xml2rfc, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update xml2rfc to 3.30.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-11058 is resolved across your whole dependency graph.
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.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2025-11058 can be triaged on real exposure rather than presence alone.
Tailored to CVE-2025-11058. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2025-11058 in your dependencies?
O3 Security finds CVE-2025-11058 across PyPI dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.