CVE-2023-2232Public exploitNetwork attack vector

Authenticated denial of service via Jira regex

Published Jun 28, 2023 · Updated Nov 27, 2024

Regular expression denial of service in GitLab 15.10 through 16.0 allows remote authenticated users to force Puma restarts via Jira settings. The jira_issue_match_regex method interpolates user-controlled jira_issue_prefix and jira_issue_regex values into a Ruby regular expression without sanitization. A project user who can configure the Jira integration and create an issue can force 100% CPU use until Puma restarts, interrupting service.

CVSS severity6.5
Medium
EPSS probability1.61%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Regular expression denial of service in GitLab 15.10 through 16.0 allows remote authenticated users to force Puma restarts via Jira settings. The jira_issue_match_regex method interpolates user-controlled jira_issue_prefix and jira_issue_regex values into a Ruby regular expression without sanitization. A project user who can configure the Jira integration and create an issue can force 100% CPU use until Puma restarts, interrupting service.

The record

CVE
CVE-2023-2232
Published
Jun 28, 2023
Updated
Nov 27, 2024
Vendor
GitLab
Product
GitLab
Classifications
CWE-1333, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 28, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 27, 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=>=15.10, <16.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GitLab · GitLabversion=>=15.10, <16.1

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 exploitPublished

Weakness, pattern, technique

CWE-1333Inefficient Regular Expression Complexity
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo