CVE-2023-1297 | Consul Cluster Peering can Result in Denial of Service

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

Published: 2023-06-02 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-1297 is rated Low Risk (37.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.77%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-1297

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.26% 0.77% +0.51%
2 2026-06-09 0.25% 0.26% +0.01%
3 2026-01-23 — 0.25% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-1297

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.9 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.2 3.6 [email protected]
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]

Weakness enumeration for CVE-2023-1297

GitHub Security Advisory for CVE-2023-1297

GHSA-c57c-7hrj-6q6v · Severity: medium · Ecosystem: go — Hashicorp Consul vulnerable to denial of service

OS Trackers for CVE-2023-1297

vendor priority summary link
alpine high CVE-2023-1297: 1 source package rows (consul); 2 state rows across 1 repos (edge-community); fixed 0, open 2. https://security.alpinelinux.org/vuln/CVE-2023-1297
debian unimportant CVE-2023-1297 unimportant priority: Debian including 1 source packages (consul), 1 status rows across 1 suites (bullseye): resolved 1. https://security-tracker.debian.org/tracker/CVE-2023-1297
gentoo low CVE-2023-1297: 1 GLSA(s) (202412-14), 1 atom(s) (app-admin/consul); latest impact low. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2023-1297
ubuntu low CVE-2023-1297 low priority: Ubuntu including 1 source packages (consul), 13 status rows across 13 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 5, ignored 4, needs-triage 4. https://ubuntu.com/security/CVE-2023-1297

Affected software / configurations for CVE-2023-1297

Vendor Product Version Raw CPE
hashicorp consul >= 1.13.0, < 1.14.7 cpe:2.3:a:hashicorp:consul:*:*:*:*:-:*:*:*
hashicorp consul >= 1.13.0, < 1.14.7 cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:*
hashicorp consul >= 1.15.0, < 1.15.3 cpe:2.3:a:hashicorp:consul:*:*:*:*:-:*:*:*
hashicorp consul >= 1.15.0, < 1.15.3 cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:*

References for CVE-2023-1297

cvelogic Threat Intelligence