How severe is CVE-2025-58451?

No CVSS score has been assigned to CVE-2025-58451 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2025-58451?

CVE-2025-58451 affects the following packages: cattown (npm). Ecosystems affected: npm.

How do I fix CVE-2025-58451?

Update cattown to 1.0.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-58451 is resolved across your whole dependency graph.

How do I detect CVE-2025-58451 in my npm dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for cattown, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2025-58451 if there is no patch (or I can't update yet)?

Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Is CVE-2025-58451 actively exploited in the wild?

No public exploit code has been indexed for CVE-2025-58451 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2025-58451?

CVE-2025-58451 has an EPSS (Exploit Prediction Scoring System) score of 0.3%, placing it in the 27th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2025-58451?

CVE-2025-58451 is classified as Uncontrolled Resource Consumption (CWE-400), CWE-1333 (CWE-1333). These weakness types describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2025-58451 published, and has it been updated?

CVE-2025-58451 was published on September 8, 2025 and was last updated on April 10, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

📦 npm

Not in CISA KEV

CVE-2025-58451 — cattown

Fix: IEatUranium238/Cattown@70c2a28

CVE-2025-58451 is a Uncontrolled Resource Consumption vulnerability in cattown. A fix is available for cattown — see the affected versions and patch details below.

Cattown Vulnerable to Inefficient Regular Expression Complexity and Uncontrolled Resource Consumption

Also known asGHSA-455v-w7r9-3vv9

Published

Sep 8, 2025

Updated

Apr 10, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Nov 4, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2025-58451.

EPSS Exploitation Probability

via FIRST.org ↗

0.3%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs27th percentile — riskier than 27% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, a proxy for how much of the ecosystem is exposed.

cattownnpm

0downloads / week

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

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.
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.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
📦npm	`cattown`	all versions	1.0.2`npm install cattown@1.0.2`

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for cattown, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update cattown to 1.0.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-58451 is resolved across your whole dependency graph.
Workarounds
Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Frequently Asked Questions

### 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 t

O3 Security · Impact-Aware SCA

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