CVE-2024-38365: btcd is an alternative full node bitcoin implementation written in Go (golang)

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HIGH 7.4REMOTEUPGRADE

CVE-2024-38365 is a high-severity flaw (CVSS 7.4) affecting btcd. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

btcd is an alternative full node bitcoin implementation written in Go (golang). The btcd Bitcoin client (versions 0.10 to 0.24) did not correctly re-implement Bitcoin Core's "FindAndDelete()" functionality. This logic is consensus-critical: the difference in behavior with the other Bitcoin clients can lead to btcd clients accepting an invalid Bitcoin block (or rejecting a valid one). This consensus failure can be leveraged to cause a chain split

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.4 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	1.0% (top 37%)
CISA exploited list	No
Weakness	CWE-670
Published	2024-10-11
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: btcd project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-10-11 20:15 UTCPublished CVE record published
2026-06-17 07:39 UTCUpdated Record last modified

btcd project btcd UPGRADE

Affected: >= 0.10.0 and < 0.24.2

Fixed in: 0.24.2

Safe to downgrade to: a release before 0.10.0

1. Check installed version

apt-cache policy btcd || rpm -q btcd || btcd --version

2. UPGRADE to 0.24.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade btcd

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade btcd

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 0.10.0 (Debian / Ubuntu)

apt-cache madison btcd sudo apt install btcd=<VERSION_BEFORE_0.10.0> sudo apt-mark hold btcd

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list btcd sudo dnf downgrade btcd-<VERSION_BEFORE_0.10.0> sudo dnf versionlock add btcd

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-38365?

btcd: upgrade to 0.24.2. Exact commands for each OS are on this page.

Is CVE-2024-38365 being exploited?

CVE-2024-38365 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-38365 affect?

CVE-2024-38365 affects btcd. Severity is high (CVSS 7.4). btcd is an alternative full node bitcoin implementation written in Go (golang). The btcd Bitcoin client (versions 0.10 to 0.24) did not correctly re-implement Bitcoin Core's "FindAndDelete()" functionality. This logic is consensus-critical:

How urgent is CVE-2024-38365?

Priority 47/100. High severity; Remotely exploitable, no login, no user action

Software pages

Go (Golang) vulnerabilities

Related CVEs

CVE-2024-34478 HIGH 7.5 UPGRADE btcd before 0.24.0 does not correctly implement the consensus rules outlined in BIP 68 and BIP 112, making it

References

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