CVE-2023-1297: Consul and Consul Enterprise's cluster peering implementation contained a flaw whereby a peer cluster with ser

Routine

MEDIUM 4.9UPGRADE

CVE-2023-1297 is a medium-severity flaw (CVSS 4.9) affecting consul. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Consul and Consul Enterprise's cluster peering implementation contained a flaw whereby a peer cluster with service of the same name as a local service could corrupt Consul state, resulting in denial of service. This vulnerability was resolved in Consul 1.14.5, and 1.15.3

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.9 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.8% (top 45%)
CISA exploited list	No
Weakness	CWE-826
Published	2023-06-02
Last modified	2026-06-17

Publisher (CNA): HashiCorp Inc. · Vendor: hashicorp

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

Am I affected?

Timeline

2023-06-02 23:15 UTCPublished CVE record published
2026-06-17 05:27 UTCUpdated Record last modified

hashicorp consul UPGRADE

Affected: >= 1.13.0 and < 1.14.7 · >= 1.15.0 and < 1.15.3

Fixed in: 1.14.7, 1.15.3

Safe to downgrade to: a release before 1.13.0

1. Check installed version

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

2. UPGRADE to 1.14.7 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade consul

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 1.13.0 (Debian / Ubuntu)

apt-cache madison consul sudo apt install consul=<VERSION_BEFORE_1.13.0> sudo apt-mark hold consul

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

dnf --showduplicates list consul sudo dnf downgrade consul-<VERSION_BEFORE_1.13.0> sudo dnf versionlock add consul

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-2023-1297?

consul: upgrade to 1.14.7, 1.15.3. Exact commands for each OS are on this page.

Is CVE-2023-1297 being exploited?

CVE-2023-1297 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-2023-1297 affect?

CVE-2023-1297 affects consul. Severity is medium (CVSS 4.9). Consul and Consul Enterprise's cluster peering implementation contained a flaw whereby a peer cluster with service of the same name as a local service could corrupt Consul state, resulting in denial of service. This vulnerability was resolv

How urgent is CVE-2023-1297?

Priority 31/100. No elevated risk signals yet.

Software pages

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References

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