Nervos CKB Pool does not remove the conflicting transactions from the statisticsGHSA-h4c3-5275-vrmg
GHSA-h4c3-5275-vrmg is a security vulnerability in ckb. A fix is available for ckb — see the affected versions and patch details below.
Real-World Exposure
ckbReal-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
There's a bug in the pool statistics that when conflicting transactions are removed from the pool, they are not subtracted from the statics. Finally, the transaction pool keeps full and reject all transactions.
Patches
0.39.2
Workarounds
Restart the CKB node.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🦀crates.io | ckb | all versions | 0.39.2cargo update -p ckb --precise 0.39.2 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for ckb, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update ckb to 0.39.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-h4c3-5275-vrmg 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.
Frequently Asked Questions
Is GHSA-h4c3-5275-vrmg in your dependencies?
Find it across crates.io, including transitive dependencies.