Vulnerabilities in pkg:npm/bleach

PACKAGE
Advisory Identifier: GHSA-mvmf-cvfx-qg55
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Advisory Summary

CVE-2014-8881 is a MODERATE (CVSS 5.3) denial of service vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting Bleach libraries in the npm ecosystem. The issue involves regular expression denial of service in bleach. Remediation is available in the latest vendor maintenance releases.

2 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:npm/bleach

2 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:npm/bleach. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-mvmf-cvfx-qg55 CVE-2014-8881 MODERATE Regular Expression Denial of Service in bleach
GHSA-5634-rv46-48jf - HIGH Cross-Site Scripting in bleach

CVE-2014-8881 at a Glance

CVE Identifier CVE-2014-8881
GHSA Identifier GHSA-mvmf-cvfx-qg55
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-400: Uncontrolled Resource Consumption
Affected Product Bleach
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 5.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability Low (A:L)

How to Fix CVE-2014-8881

To remediate this vulnerability, upgrade all affected Bleach dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

bleach fixed: Latest secure release 
npm install bleach@Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls bleach

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2014-8881, inspect your project dependencies using npm:

npm ls bleach

Analyze the terminal output to locate any version of Bleach in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The npm ls bleach command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-400: Uncontrolled Resource Consumption, where the product does not properly control the allocation and maintenance of a limited resource. In Bleach, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

All versions of the `bleach` package are vulnerable to a regular expression denial of service attack when certain types of input are passed into the sanitize function. ## Recommendation The `bleach` package is not currently maintained, and has not seen an update since 2014. To mitigate this issue, it is necessary to use an alternative module that is actively maintained and provides similar functionality. There are [multiple modules fitting this criteria available on npm.](https://www.npmjs.com/search?q=html%20sanitizer&page=1&ranking=optimal).

CVE-2014-8881 Affected Bleach Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
bleach
npm/bleach
npm
≥ 0.0.0

References

NVD — CVE-2014-8881 NVD
https://nvd.nist.gov/vuln/detail/CVE-2014-8881
snyk.io/vuln/npm:bleach:201... WEB
https://snyk.io/vuln/npm:bleach:20151024
www.npmjs.com/advisories/47 WEB
https://www.npmjs.com/advisories/47

Frequently Asked Questions

What is CVE-2014-8881?
CVE-2014-8881 is a security vulnerability in Bleach involving Regular Expression Denial of Service in bleach under CWE-400: Uncontrolled Resource Consumption.
Which Bleach versions are affected?
Affected versions include releases prior to current release patches across affected packages: bleach.
What version fixes CVE-2014-8881?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is bleach affected?
Yes, bleach is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2014-8881?
CVE-2014-8881 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
What CWE is associated with CVE-2014-8881?
CVE-2014-8881 is classified under CWE-400: Uncontrolled Resource Consumption (The product does not properly control the allocation and maintenance of a limited resource.).
How can I check npm dependencies for CVE-2014-8881?
Run the dependency tree command: 'npm ls bleach'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-mvmf-cvfx-qg55",
  "modified" : "2021-09-23T21:06:09Z",
  "published" : "2020-09-01T15:16:43Z",
  "aliases" : [ "CVE-2014-8881" ],
  "summary" : "Regular Expression Denial of Service in bleach",
  "details" : "All versions of the `bleach` package are vulnerable to a regular expression denial of service attack when certain types of input are passed into the sanitize function.\n\n\n\n## Recommendation\n\nThe `bleach` package is not currently maintained, and has not seen an update since 2014. \n\nTo mitigate this issue, it is necessary to use an alternative module that is actively maintained and provides similar functionality. There are [multiple modules fitting this criteria available on npm.](https://www.npmjs.com/search?q=html%20sanitizer&page=1&ranking=optimal).",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "bleach"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0.0.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2014-8881"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/vuln/npm:bleach:20151024"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/advisories/47"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-08-31T18:09:10Z",
    "nvd_published_at" : null
  }
}