CVE-2026-3192: A security vulnerability has been detected in Chia Blockchain 2.1.0

This week

MEDIUM 5.6REMOTEDOWNGRADE

CVE-2026-3192 is a medium-severity flaw (CVSS 5.6) affecting blockchain. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A security vulnerability has been detected in Chia Blockchain 2.1.0. This issue affects the function _authenticate of the file rpc_server_base.py of the component RPC Credential Handler. The manipulation leads to improper authentication. The attack is possible to be carried out remotely. The attack is considered to have high complexity. The exploitability is assessed as difficult. The exploit has been disclosed publicly and may be used. The vendo

Why this priority

Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.6 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 49%)
CISA exploited list	No
Weakness	CWE-287, CWE-306
Published	2026-02-25
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: chia

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

Am I affected?

Timeline

2026-02-25 17:25 UTCPublished CVE record published
2026-06-17 10:43 UTCUpdated Record last modified

chia blockchain DOWNGRADE

Affected: 2.1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.1.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.1.0 (Debian / Ubuntu)

apt-cache madison blockchain sudo apt install blockchain=<VERSION_BEFORE_2.1.0> sudo apt-mark hold blockchain

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list blockchain sudo dnf downgrade blockchain-<VERSION_BEFORE_2.1.0> sudo dnf versionlock add blockchain

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-2026-3192?

blockchain: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-3192 being exploited?

CVE-2026-3192 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-2026-3192 affect?

CVE-2026-3192 affects blockchain. Severity is medium (CVSS 5.6). A security vulnerability has been detected in Chia Blockchain 2.1.0. This issue affects the function _authenticate of the file rpc_server_base.py of the component RPC Credential Handler. The manipulation leads to improper authentication. Th

How urgent is CVE-2026-3192?

Priority 42/100. Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-3194 MEDIUM 4.5 DOWNGRADE A flaw has been found in Chia Blockchain 2.1.0
CVE-2026-3193 LOW 3.1 DOWNGRADE A vulnerability was detected in Chia Blockchain 2.1.0

References

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