CVE-2024-37299Network attack vector

Service interruption via unbounded tag group names

Published Jul 30, 2024 · Updated Aug 2, 2024

Uncontrolled resource consumption in Discourse before 3.2.5 allows remote authenticated users to interrupt forum service. The TagGroup model accepted names of unbounded length, so crafted tag-group requests and stored values consume resources until instance availability declines. Administrative privileges are required; the beta branch is affected from 3.3.0.beta1 through 3.3.0.beta4, and the bounded consequence is service interruption.

CVSS severity4.9
Medium
EPSS probability0.60%
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

Uncontrolled resource consumption in Discourse before 3.2.5 allows remote authenticated users to interrupt forum service. The TagGroup model accepted names of unbounded length, so crafted tag-group requests and stored values consume resources until instance availability declines. Administrative privileges are required; the beta branch is affected from 3.3.0.beta1 through 3.3.0.beta4, and the bounded consequence is service interruption.

The record

CVE
CVE-2024-37299
Published
Jul 30, 2024
Updated
Aug 2, 2024
Vendor
Discourse
Product
Discourse
Classifications
CWE-400, T1499.003
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jul 30, 2024CVE 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=< 3.2.5
  2. Affected versionversion=>= 3.3.0.beta1, < 3.3.0.beta5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Discourse · Discourseversion=< 3.2.5; version=>= 3.3.0.beta1, < 3.3.0.beta5

Published CVSS scores

4.9GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499.003Application Exhaustion Flood

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

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