CVE-2022-1174Public exploitNetwork attack vector

Authenticated service interruption via unbounded Kroki rendering

Published Apr 4, 2022 · Updated Aug 2, 2024

Denial of service in affected GitLab CE/EE releases allows remote authenticated users to cause high CPU use via crafted Kroki markup. When Kroki is enabled, diagram rendering accepts a small, specially constructed payload without an effective workload limit and drives expensive rendering. A low-privileged account and an administrator-enabled Kroki integration are required; one malicious comment can prevent affected issues, wikis, or merge requests from loading normally.

CVSS severity4.3
Medium
EPSS probability1.50%
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 affected GitLab CE/EE releases allows remote authenticated users to cause high CPU use via crafted Kroki markup. When Kroki is enabled, diagram rendering accepts a small, specially constructed payload without an effective workload limit and drives expensive rendering. A low-privileged account and an administrator-enabled Kroki integration are required; one malicious comment can prevent affected issues, wikis, or merge requests from loading normally.

The record

CVE
CVE-2022-1174
Published
Apr 4, 2022
Updated
Aug 2, 2024
Vendor
GitLab
Product
GitLab
Classifications
CWE-1284, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 4, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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=>=13.7, <14.7.7
  2. Affected versionversion=>=14.8, <14.8.5
  3. Affected versionversion=>=14.9, <14.9.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GitLab · GitLabversion=>=13.7, <14.7.7; version=>=14.8, <14.8.5; version=>=14.9, <14.9.2

Published CVSS scores

5.0NIST NVDAV:N/AC:L/Au:N/C:N/I:N/A:P
4.3GitLab Inc.CVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-1284Improper Validation of Specified Quantity in Input
T1499.004Application or System Exploitation

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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