TI-2021-20785 Aliases CVE-2021-45698 GHSA-8gjm-h3xj-mp6w

An issue was discovered in the ckb crate before 0.40.0 for Rust.

MEDIUM 45Published 2021-12-26 · Updated 2024-08-04

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.

Summary

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.

Why it matters now

EPSS 0.0123 69th percentileScored 2026-11-07

Fix Fixed ckb (crates.io): 0.40.0

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA
—	ckb (crates.io)	before 0.40.0	0.40.0	Patch available	GHSA-8gjm-h3xj-mp6w

— Vendor— Affected all versions Fixed in — No fix listed CNA
ckb (crates.io) Vendor— Affected before 0.40.0 Fixed in 0.40.0 Patch available GHSA-8gjm-h3xj-mp6w

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:nervos:ckb::::::rust::*	before 0.40.0	Vulnerable	Nervos

cpe:2.3:a:nervos:ckb:*:*:*:*:*:rust:*:* Versions before 0.40.0 Vulnerable ·Nervos

Remediation

Fix · GHSA-8gjm-h3xj-mp6w ckb (crates.io) Fixed in 0.40.0 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2021-45698
2026-10-03 Alias added: GHSA-8gjm-h3xj-mp6w

References

Advisory 3

Other 2

TI-2021-20786 An issue was discovered in the ckb crate before 0.40.0 for Rust. CVSS 3.1HIGH 7.5
TI-2021-20787 An issue was discovered in the ckb crate before 0.40.0 for Rust. CVSS 3.1HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences