GHSA-fxc9-7j2w-vx54
mpp has multiple payment bypass and griefing vulnerabilities
Blast Radius
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Description
Impact
Multiple vulnerabilities were discovered which allowed for undesirable behaviors, including:
- Performing free
tempo/chargerequests - Replaying existing
tempo/chargerequests - Performing free
tempo/sessionrequests - Piggybacking off existing
tempo/sessionchannels - Griefing existing
tempo/sessionchannels - Manipulate the fee payer of a
tempo/chargeortempo/sessionhandler into paying for requests - Replaying existing
stripe/chargerequests
Patches
The issues are patched in 0.8.0
Workarounds
There are no workarounds available for these vulnerabilities
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🦀crates.io | mpp | all versions | 0.8.0 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for mpp. 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 mpp to 0.8.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-fxc9-7j2w-vx54 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-fxc9-7j2w-vx54 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-fxc9-7j2w-vx54. 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-fxc9-7j2w-vx54 in your dependencies?
O3 detects GHSA-fxc9-7j2w-vx54 across crates.io dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.