GHSA-fxc9-7j2w-vx54 — mpp
GHSA-fxc9-7j2w-vx54 is a security vulnerability in mpp. A fix is available for mpp — see the affected versions and patch details below.
mpp has multiple payment bypass and griefing vulnerabilities
Real-World Exposure
mppReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects crates.io packages — download data is not available via public APIs for these ecosystems.
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 | 0.8.0cargo update -p mpp --precise 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, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
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 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-fxc9-7j2w-vx54 can be triaged on real exposure rather than presence alone.
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 Security finds GHSA-fxc9-7j2w-vx54 across crates.io dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.