CVE-2024-1963Public exploitNetwork attack vector

Service interruption via Asana regex backtracking

Published Jun 12, 2024 · Updated Aug 30, 2024

Regular expression denial of service in GitLab CE/EE allows remote authenticated users to hang instances via crafted commit messages. The Asana issue-reference matcher applies a backtracking-prone regular expression to commit messages, and long hash-prefixed strings consume excessive CPU. The attacker needs a project with the Asana integration enabled and permission to create commits or test the integration; repeated requests can make the entire instance unresponsive.

CVSS severity6.5
Medium
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Regular expression denial of service in GitLab CE/EE allows remote authenticated users to hang instances via crafted commit messages. The Asana issue-reference matcher applies a backtracking-prone regular expression to commit messages, and long hash-prefixed strings consume excessive CPU. The attacker needs a project with the Asana integration enabled and permission to create commits or test the integration; repeated requests can make the entire instance unresponsive.

The record

CVE
CVE-2024-1963
Published
Jun 12, 2024
Updated
Aug 30, 2024
Vendor
GitLab
Product
GitLab
Classifications
CWE-1333, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 12, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 30, 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=16.11 <16.11.4
  2. Affected versionversion=17.0 <17.0.2
  3. Affected versionversion=8.4 <16.10.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GitLab · GitLabversion=16.11 <16.11.4; version=17.0 <17.0.2; version=8.4 <16.10.7

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 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-1333Inefficient Regular Expression Complexity
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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