CVE-2022-3285Public exploitNetwork attack vector

Denial of service via HTTP health-check bypass

Published Nov 9, 2022 · Updated May 1, 2025

Access-control bypass in GitLab 12.0 through 15.2.4, 15.3 through 15.3.3, and 15.4.0 allows remote attackers to interrupt service. In HTTPS-enabled Omnibus installations, NGINX includes gitlab-health.conf in the port 80 redirect server, proxying health paths before the catch-all redirect and without the IP allowlist. No account is required, and rapid repeated requests to the exposed health endpoint can deny access to the entire instance.

CVSS severity5.3
Medium
EPSS probability0.82%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Access-control bypass in GitLab 12.0 through 15.2.4, 15.3 through 15.3.3, and 15.4.0 allows remote attackers to interrupt service. In HTTPS-enabled Omnibus installations, NGINX includes gitlab-health.conf in the port 80 redirect server, proxying health paths before the catch-all redirect and without the IP allowlist. No account is required, and rapid repeated requests to the exposed health endpoint can deny access to the entire instance.

The record

CVE
CVE-2022-3285
Published
Nov 9, 2022
Updated
May 1, 2025
Vendor
GitLab
Product
GitLab
Classifications
T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 9, 2022CVE publishedPublication date reported by the CVE source.
  2. May 1, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=>=12.0, <15.2.5
  2. Affected versionversion=>=15.3, <15.3.4
  3. Affected versionversion=>=15.4, <15.4.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

GitLab · GitLabversion=>=12.0, <15.2.5; version=>=15.3, <15.3.4; version=>=15.4, <15.4.1

Published CVSS scores

5.3GitLab Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1499Endpoint Denial of Service

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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