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GHSA-455v-w7r9-3vv9

HighCVSS 8.7 / 10
Published Sep 9, 2025·Last modified Sep 25, 2025
Affected Components(0)

No affected components available

Description

Overview

A security review of the Cattown identified multiple weaknesses that could potentially impact its stability and security.

Affected Versions

  • All versions below 1.0.2

Description of Vulnerabilities

  1. CWE-1333: Inefficient Regular Expression Complexity The package used regular expressions with inefficient, potentially exponential worst-case complexity. This can cause excessive CPU usage due to excessive backtracking on crafted inputs, potentially leading to denial of service.
  2. CWE-400: Uncontrolled Resource Consumption (Resource Exhaustion) The package was vulnerable to resource exhaustion, where processing malicious inputs could cause high CPU or memory usage, potentially leading to denial of service.

Impact

  • Trigger excessive CPU consumption leading to denial of service
  • Cause resource exhaustion affecting service availability
  • Bypass protection mechanisms causing unexpected or insecure behavior

Resolution

These vulnerabilities have been fixed in version 1.0.2 of the Cattown. Users are strongly encouraged to upgrade to this version to mitigate the risks.

Recommendations

  • Upgrade to Cattown version 1.0.2 or later as soon as possible.
  • Review and restrict input sources if untrusted inputs are processed.

Acknowledgments

The issues were proactively identified through CodeQL static analysis.

Risk Scores
Base Score
8.7

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability.

Threat Intelligence
6.6

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
N/A

Probability that this vulnerability will be exploited in the wild within the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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High severity
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