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5.3

nescalante urlregex: Inefficient Regular Expression Can Cause Performance Issues

CVE-2020-36830 · published 2 years ago
Summary

A security update is available for nescalante urlregex, which affects how it processes certain URLs. This can lead to slower performance, but it's not a direct security risk. To fix the issue, upgrade to version 0.5.1 or later.

What to do
  • Update hiuxmaycry urlregex to version 0.5.1.
  • Update nescalante urlregex to version 0.5.1 or later.
Affected software
Ecosystem VendorProductAffected versions
npm hiuxmaycry urlregex < 0.5.1
Fix: upgrade to 0.5.1
– nescalante urlregex < 0.5.1
cpe:2.3:a:nescalante:urlregex:*:*:*:*:*:*:*:*
Original advisory text
A vulnerability was found in nescalante urlregex up to 0.5.0 and classified as problematic. This issue affects some unknown processing of the file index.js of the component Backtracking. The manipu...
A vulnerability was found in nescalante urlregex up to 0.5.0 and classified as problematic. This issue affects some unknown processing of the file index.js of the component Backtracking. The manipulation leads to inefficient regular expression complexity. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 0.5.1 is able to address this issue. The identifier of the patch is e5a085afe6abfaea1d1a78f54c45af9ef43ca1f9. It is recommended to upgrade the affected component.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
5.3 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-1333Inefficient Regular Expression Complexity (ReDoS)
Timeline
Published2 Sep 2024
Updated4 Nov 2026
First seen6 Mar 2026
Sources
GHSA-rw72-v6c7-hf9r · GHSA
CVE-2020-36830 · NVD
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