CVE-2021-22169Network attack vector

Internal IP disclosure through error messages

Published Mar 24, 2021 · Updated Aug 3, 2024

Information exposure in affected GitLab EE 13.4 through 13.7 releases allows remote authenticated users to read internal IP addresses in errors. GitLab has not published the affected error path or the operation that places the server's internal address into the response. A low-privileged account and network access are required, and the reported consequence is limited to disclosure of internal addressing data.

CVSS severity4.3
Medium
EPSS probability0.83%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information exposure in affected GitLab EE 13.4 through 13.7 releases allows remote authenticated users to read internal IP addresses in errors. GitLab has not published the affected error path or the operation that places the server's internal address into the response. A low-privileged account and network access are required, and the reported consequence is limited to disclosure of internal addressing data.

The record

CVE
CVE-2021-22169
Published
Mar 24, 2021
Updated
Aug 3, 2024
Vendor
GitLab
Product
GitLab
Classifications
CWE-209
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 24, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 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=>=13.4, <13.5.6
  2. Affected versionversion=>=13.6.0, <13.6.4
  3. Affected versionversion=>=13.7.0, <13.7.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GitLab · GitLabversion=>=13.4, <13.5.6; version=>=13.6.0, <13.6.4; version=>=13.7.0, <13.7.2

Published CVSS scores

4.3GitLab Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.0NIST NVDAV:N/AC:L/Au:S/C:P/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-209Generation of Error Message Containing Sensitive Information

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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