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CVE-2023-1297

Consul Cluster Peering can Result in Denial of Service

HIGH
7.5
CVSS Score
Published: June 2, 2023 at 10:48 PM UTC
Updated: June 17, 2026 at 05:27 AM UTC
1 product affected across 1 vendorConsul

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Severity
HIGH7.5
Exploit prediction
EPSS 0.8%
SSVC
No known exploit

Description

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Consul· Hashicorp
95%
1.13.0 ≤ v < 1.14.71.14.0 ≤ v ≤ 1.14.51.15.0 ≤ v ≤ 1.15.31.15.0 ≤ v < 1.15.31.14.01.15.0
Affected range stops below 1.14.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.15.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: [email protected]
https://discuss.hashicorp.com/t/hcsec-2023-15-consul-cluster-peering-can-result-in-denial-of-service/54515

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-826NVD-CWE-noinfo

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