CVE-2023-4630Network attack vector

Project import disclosure via missing endpoint authorization

Published Sep 11, 2023 · Updated Jun 2, 2026

Missing authorization in GitLab 10.6 through 16.1.4, 16.2 through 16.2.4, and 16.3.0 allows remote authenticated users to read project-import data. The GET /api/v4/projects/:id/import endpoint accepts ordinary project read access and returns import errors, failed-relation exception messages, and import statistics instead of requiring import capability. A low-privileged account and access to a readable project are required; exposed errors can contain access tokens or source URLs, while no write or availability impact is reported.

CVSS severity5.0
Medium
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in GitLab 10.6 through 16.1.4, 16.2 through 16.2.4, and 16.3.0 allows remote authenticated users to read project-import data. The GET /api/v4/projects/:id/import endpoint accepts ordinary project read access and returns import errors, failed-relation exception messages, and import statistics instead of requiring import capability. A low-privileged account and access to a readable project are required; exposed errors can contain access tokens or source URLs, while no write or availability impact is reported.

The record

CVE
CVE-2023-4630
Published
Sep 11, 2023
Updated
Jun 2, 2026
Vendor
GitLab
Product
GitLab
Classifications
CWE-862, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 11, 2023CVE publishedPublication date reported by the CVE source.
  2. Jun 2, 2026Record 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=10.6 <16.1.5
  2. Affected versionversion=16.2 <16.2.5
  3. Affected versionversion=16.3 <16.3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GitLab · GitLabversion=10.6 <16.1.5; version=16.2 <16.2.5; version=16.3 <16.3.1

Published CVSS scores

5.0GitLabCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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