GHSA-r9rv-9mh8-pxf4 — ckb
Fix: nervosnetwork/ckb@760d447GHSA-r9rv-9mh8-pxf4 is a security vulnerability in ckb. A fix is available for ckb — see the affected versions and patch details below.
Nervos CKB BlockTimeTooNew should not be considered as invalid block
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
Currently, when a node receives a block in future according to its local wall clock, it will mark the block as invalid and ban the peer.
If the header's timestamp is more than 15 seconds ahead of our current time. In that case, the header may become valid in the future, and we don't want to disconnect a peer merely for serving us one too-far-ahead block header, to prevent an attacker from splitting the network by mining a block right at the 15 seconds boundary.
Patches
Upgrade to v0.33.1 or above.
Workarounds
Don't ban peer serving too-far-ahead block header.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🦀crates.io | ckb | all versions | 0.33.1cargo update -p ckb --precise 0.33.1 |
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 0.33.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-r9rv-9mh8-pxf4 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-r9rv-9mh8-pxf4 can be triaged on real exposure rather than presence alone.
Tailored to GHSA-r9rv-9mh8-pxf4. 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-r9rv-9mh8-pxf4 in your dependencies?
O3 Security finds GHSA-r9rv-9mh8-pxf4 across crates.io dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.