CVE-2023-5332Network attack vector

Remote code execution via Consul script checks

Published Dec 4, 2023 · Updated Oct 3, 2024

RCE in GitLab EE before 16.2.8, 16.3.0 through 16.3.4, and 16.4.0 allows remote authenticated users to execute Consul checks. The Omnibus cookbook enables remotely registerable Consul script checks, so an API request can install a command payload despite the patched Consul dependency. Reachability requires a network-accessible Consul API plus disabled ACLs or a compromised service-registration token; executed commands can read and alter host data.

CVSS severity5.9
Medium
EPSS probability0.74%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

RCE in GitLab EE before 16.2.8, 16.3.0 through 16.3.4, and 16.4.0 allows remote authenticated users to execute Consul checks. The Omnibus cookbook enables remotely registerable Consul script checks, so an API request can install a command payload despite the patched Consul dependency. Reachability requires a network-accessible Consul API plus disabled ACLs or a compromised service-registration token; executed commands can read and alter host data.

The record

CVE
CVE-2023-5332
Published
Dec 4, 2023
Updated
Oct 3, 2024
Vendor
GitLab
Product
GitLab
Classifications
T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Dec 4, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=16.3.0 <16.3.5
  2. Affected versionversion=16.4 <16.4.1
  3. Affected versionversion=9.5.0 <16.2.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

GitLab · GitLabversion=16.3.0 <16.3.5; version=16.4 <16.4.1; version=9.5.0 <16.2.8

Published CVSS scores

5.9GitLab Inc.CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N
8.1NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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