CVE-2025-5896: Taro css to react native Denial of Service Vulnerability

MODERATE
Advisory Identifier: GHSA-f5xg-cfpj-2mw6
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CVSS 4.3
CWE-400 CWE-1333
Published
Advisory Summary

CVE-2025-5896 is a MODERATE (CVSS 4.3) denial of service vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting Taro css to react native libraries in the npm ecosystem. The issue involves taro-css-to-react-native regular expression denial of service vulnerability. Remediation is available by upgrading affected packages to version 4.1.2.

CVE-2025-5896 at a Glance

CVE Identifier CVE-2025-5896
GHSA Identifier GHSA-f5xg-cfpj-2mw6
Severity MODERATE
CVSS v3.1 Base Score 4.3
CWE Classification CWE-400: Uncontrolled Resource Consumption
Affected Product Taro css to react native
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 4.3

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

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
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-2025-5896

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

taro-css-to-react-native fixed: 4.1.2 
npm install taro-css-to-react-native@4.1.2
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 taro-css-to-react-native

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2025-5896, inspect your project dependencies using npm:

npm ls taro-css-to-react-native

Analyze the terminal output to locate any version of Taro css to react native in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.1.2), your application is affected.

Note: The npm ls taro-css-to-react-native 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 Taro css to react native, 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

A vulnerability was found in tarojs taro up to 4.1.1. It has been declared as problematic. This vulnerability affects unknown code of the file taro/packages/css-to-react-native/src/index.js. The manipulation leads to inefficient regular expression complexity. The attack can be initiated remotely. Upgrading to version 4.1.2 is able to address this issue. The name of the patch is c2e321a8b6fc873427c466c69f41ed0b5e8814bf. It is recommended to upgrade the affected component.

CVE-2025-5896 Affected Taro css to react native Versions

1 component(s)
Fixed Versions:
4.1.2
Product / Package Ecosystem Affected Versions Fixed Version
taro-css-to-react-native
npm/taro-css-to-react-native
npm
< 4.1.2
4.1.2

References

vuldb.com/ WEB
https://vuldb.com/?submit.585796
NVD — CVE-2025-5896 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-5896
Taro css to react native Source Repository REPOSITORY
https://github.com/NervJS/taro/pull/17619
Security Fix Commit FIX COMMIT
https://github.com/NervJS/taro/commit/c2e321a8b6fc873427c466c69f41ed0b5e8814bf
Taro css to react native Source Repository REPOSITORY
https://github.com/NervJS/taro
vuldb.com/ WEB
https://vuldb.com/?ctiid.311668
Taro css to react native Release RELEASE
https://github.com/NervJS/taro/releases/tag/v4.1.2
vuldb.com/ WEB
https://vuldb.com/?id.311668

Frequently Asked Questions

What is CVE-2025-5896?
CVE-2025-5896 is a security vulnerability in Taro css to react native involving taro-css-to-react-native Regular Expression Denial of Service vulnerability under CWE-400: Uncontrolled Resource Consumption.
Which Taro css to react native versions are affected?
Affected versions include releases prior to 4.1.2 across affected packages: taro-css-to-react-native.
What version fixes CVE-2025-5896?
Upgrading to 4.1.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is taro-css-to-react-native affected?
Yes, taro-css-to-react-native is affected in releases prior to 4.1.2. Upgrade your dependency to 4.1.2 or later.
What is the CVSS score of CVE-2025-5896?
CVE-2025-5896 has a CVSS v3.1 base score of 4.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
What CWE is associated with CVE-2025-5896?
CVE-2025-5896 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-2025-5896?
Run the dependency tree command: 'npm ls taro-css-to-react-native'. 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-f5xg-cfpj-2mw6",
  "modified" : "2025-06-09T23:08:45Z",
  "published" : "2025-06-09T21:30:52Z",
  "aliases" : [ "CVE-2025-5896" ],
  "summary" : "taro-css-to-react-native Regular Expression Denial of Service vulnerability",
  "details" : "A vulnerability was found in tarojs taro up to 4.1.1. It has been declared as problematic. This vulnerability affects unknown code of the file taro/packages/css-to-react-native/src/index.js. The manipulation leads to inefficient regular expression complexity. The attack can be initiated remotely. Upgrading to version 4.1.2 is able to address this issue. The name of the patch is c2e321a8b6fc873427c466c69f41ed0b5e8814bf. It is recommended to upgrade the affected component.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "taro-css-to-react-native"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "4.1.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-5896"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/NervJS/taro/pull/17619"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/NervJS/taro/commit/c2e321a8b6fc873427c466c69f41ed0b5e8814bf"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/NervJS/taro"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/NervJS/taro/releases/tag/v4.1.2"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/?ctiid.311668"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/?id.311668"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/?submit.585796"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1333", "CWE-400" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-06-09T23:08:45Z",
    "nvd_published_at" : "2025-06-09T21:15:47Z"
  }
}