CVE-2023-3362Public exploitNetwork attack vector

Unauthenticated import-error disclosure via missing ownership check

Published Jul 13, 2023 · Updated Nov 5, 2024

Information disclosure in GitLab 16.0 through 16.0.5 and 16.1.0 allows remote attackers to read GitHub import error details. The Import::GithubController#failures action selects an imported project by an attacker-supplied project_id without restricting the lookup to the project's creator, then serializes its import failures. No authentication is required, but the target project must have been imported from GitHub; exposure is limited to its recorded import-error information.

CVSS severity5.3
Medium
EPSS probability0.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in GitLab 16.0 through 16.0.5 and 16.1.0 allows remote attackers to read GitHub import error details. The Import::GithubController#failures action selects an imported project by an attacker-supplied project_id without restricting the lookup to the project's creator, then serializes its import failures. No authentication is required, but the target project must have been imported from GitHub; exposure is limited to its recorded import-error information.

The record

CVE
CVE-2023-3362
Published
Jul 13, 2023
Updated
Nov 5, 2024
Vendor
GitLab
Product
GitLab
Classifications
CWE-209, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 13, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 5, 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=16.0 <16.0.6
  2. Affected versionversion=16.1 <16.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

GitLab · GitLabversion=16.0 <16.0.6; version=16.1 <16.1.1

Published CVSS scores

5.3GitLab Inc.CVSS:3.1/AV:N/AC:L/PR:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-209Generation of Error Message Containing Sensitive Information
T1190Exploit Public-Facing Application

Public exploit references

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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