Critical severity9.8NVD Advisory· Published Dec 27, 2021· Updated Jun 17, 2026
CVE-2021-45698
CVE-2021-45698
Description
An issue was discovered in the ckb crate before 0.40.0 for Rust. A get_block_template RPC call may fail in situations where it is supposed to select a Nervos CKB blockchain transaction with a higher fee rate than another transaction.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
ckbcrates.io | < 0.40.0 | 0.40.0 |
Affected products
3- ckb/ckbdescription
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-8gjm-h3xj-mp6wghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-45698ghsaADVISORY
- raw.githubusercontent.com/rustsec/advisory-db/main/crates/ckb/RUSTSEC-2021-0107.mdnvdThird Party AdvisoryWEB
- rustsec.org/advisories/RUSTSEC-2021-0107.htmlnvdThird Party AdvisoryWEB
- github.com/nervosnetwork/ckb/security/advisories/GHSA-v666-6w97-pcwmghsaWEB
News mentions
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