GHSA-29c2-65rj-h343 — ckb
Fix: nervosnetwork/ckb@2770618GHSA-29c2-65rj-h343 is a security vulnerability in ckb. A fix is available for ckb — see the affected versions and patch details below.
Nervos CKB Permit load cell data from memory
Real-World Exposure
ckb🦀ckb🦀ckb🦀ckb🦀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
The faulty nodes will reject transactions which calls load_cell_data syscall but the input cell is still in the mempool. They also ban other nodes and cause the network separation.
Patches
0.35.2, 0.36.1, 0.37.1, 0.38.2
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🦀crates.io | ckb | ≥ 0.39.0-rc1&&< 0.39.0 | 0.39.0cargo update -p ckb --precise 0.39.0 |
| 🦀crates.io | ckb | ≥ 0.35.0-rc1&&< 0.35.2 | 0.35.2cargo update -p ckb --precise 0.35.2 |
| 🦀crates.io | ckb | ≥ 0.36.0-rc1&&< 0.36.1 | 0.36.1cargo update -p ckb --precise 0.36.1 |
| 🦀crates.io | ckb | ≥ 0.37.0-rc1&&< 0.37.1 | 0.37.1cargo update -p ckb --precise 0.37.1 |
| 🦀crates.io | ckb | ≥ 0.38.0-rc1&&< 0.38.2 | 0.38.2cargo update -p ckb --precise 0.38.2 |
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 0.39.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-29c2-65rj-h343 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-29c2-65rj-h343 can be triaged on real exposure rather than presence alone.
Tailored to GHSA-29c2-65rj-h343. 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-29c2-65rj-h343 in your dependencies?
O3 Security finds GHSA-29c2-65rj-h343 across crates.io dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.