GHSA-q547-gmf8-8jr7
MEDIUMGHSA-q547-gmf8-8jr7 is a medium-severity (CVSS 5.3) CWE-347 vulnerability in github.com/russellhaering/goxmldsig. O3 Security confirms whether GHSA-q547-gmf8-8jr7 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
github.com/russellhaering/goxmldsig vulnerable to Signature Validation Bypass
Blast Radius
github.com/russellhaering/goxmldsigReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.
Description
Impact
With a carefully crafted XML file, an attacker can completely bypass signature validation and pass off an altered file as a signed one.
Patches
A patch is available, all users of goxmldsig should upgrade to v1.1.0.
For more information
If you have any questions or comments about this advisory open an issue at https://github.com/russellhaering/goxmldsig
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | github.com/russellhaering/goxmldsig | all versions | 1.1.0 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/russellhaering/goxmldsig. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update github.com/russellhaering/goxmldsig to 1.1.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-q547-gmf8-8jr7 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 pinpoints whether GHSA-q547-gmf8-8jr7 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-q547-gmf8-8jr7. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-q547-gmf8-8jr7 in your dependencies?
O3 detects GHSA-q547-gmf8-8jr7 across Go dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.