CVE-2024-6038Public exploitNetwork attack vector

Service hang via unvalidated history-search regex

Published Jun 27, 2024 · Updated Oct 15, 2025

Regular expression denial of service in ChuanhuChatGPT before 20240918 allows remote attackers to hang the service via history search. The filter_history function in modules/utils.py passes the user-supplied keyword directly to re.search as the pattern for chat-history filenames. Network access to the web interface is sufficient; crafted expressions can exhaust CPU and stall the service without reading or modifying data.

CVSS severity7.5
High
EPSS probability0.66%
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 ChuanhuChatGPT before 20240918 allows remote attackers to hang the service via history search. The filter_history function in modules/utils.py passes the user-supplied keyword directly to re.search as the pattern for chat-history filenames. Network access to the web interface is sufficient; crafted expressions can exhaust CPU and stall the service without reading or modifying data.

The record

CVE
CVE-2024-6038
Published
Jun 27, 2024
Updated
Oct 15, 2025
Vendor
GaiZhenbiao
Product
ChuanhuChatGPT
Classifications
CWE-1333, CAPEC-492, T1499.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 27, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 15, 2025Record 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=0
  2. Affected versionversion=unspecified <20240918

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

GaiZhenbiao · ChuanhuChatGPTversion=0; version=unspecified <20240918

Published CVSS scores

7.5huntr.devCVSS:3.0/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-1333Inefficient Regular Expression Complexity
CAPEC-492Regular Expression Exponential Blowup
T1499.003Endpoint Denial of Service: Application Exhaustion Flood

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