CVE-2024-10955Public exploitNetwork attack vector

Service interruption via polynomial-time regex matching

Published Mar 20, 2025 · Updated Oct 15, 2025

ReDoS in ChuanhuChatGPT as of commit 20b2e02 allows remote authenticated users to interrupt service via a malicious JSON upload. The server applies Python's backtracking regex <[^>]+> to attacker-controlled input, where crafted nonmatches require polynomial matching time and drive CPU use to 100%. A low-privileged authenticated session is required; successful exploitation ties up server CPU for an extended period and can deny the application to all users.

CVSS severity6.5
Medium
EPSS probability0.72%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

ReDoS in ChuanhuChatGPT as of commit 20b2e02 allows remote authenticated users to interrupt service via a malicious JSON upload. The server applies Python's backtracking regex <[^>]+> to attacker-controlled input, where crafted nonmatches require polynomial matching time and drive CPU use to 100%. A low-privileged authenticated session is required; successful exploitation ties up server CPU for an extended period and can deny the application to all users.

The record

CVE
CVE-2024-10955
Published
Mar 20, 2025
Updated
Oct 15, 2025
Vendor
GaiZhenbiao
Product
ChuanhuChatGPT
Classifications
CWE-1333, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 20, 2025CVE 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

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Is a vulnerable build present?

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  1. Affected versionversion=unspecified <=latest

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GaiZhenbiao · ChuanhuChatGPTversion=unspecified <=latest

Published CVSS scores

6.5huntr.devCVSS:3.0/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.

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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
T1499Endpoint Denial of Service

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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