CVE-2023-5825Network attack vector

Authenticated denial of service via path-resolution loop

Published Nov 6, 2023 · Updated Apr 29, 2026

Denial of service in GitLab CE/EE 16.2 through 16.3.5, 16.4 through 16.4.1, and 16.5.0 allows remote authenticated users to exhaust server memory. CI/CD component resolution repeatedly follows an incorrect component path without reaching an exit condition, consuming all available memory. Low-privileged project access is sufficient; successful exploitation crashes the self-managed GitLab service.

CVSS severity6.5
Medium
EPSS probability0.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in GitLab CE/EE 16.2 through 16.3.5, 16.4 through 16.4.1, and 16.5.0 allows remote authenticated users to exhaust server memory. CI/CD component resolution repeatedly follows an incorrect component path without reaching an exit condition, consuming all available memory. Low-privileged project access is sufficient; successful exploitation crashes the self-managed GitLab service.

The record

CVE
CVE-2023-5825
Published
Nov 6, 2023
Updated
Apr 29, 2026
Vendor
GitLab
Product
GitLab
Classifications
CWE-835, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 6, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 29, 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=16.2 <16.3.6
  2. Affected versionversion=16.4 <16.4.2
  3. Affected versionversion=16.5 <16.5.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GitLab · GitLabversion=16.2 <16.3.6; version=16.4 <16.4.2; version=16.5 <16.5.1

Published CVSS scores

6.5GitLab Inc.CVSS:3.1/AV:N/AC:L/PR:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')
T1499.004Application or System Exploitation

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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