CVE-2025-27789 - Medium Severity Vulnerability
Vulnerable Library - helpers-7.29.2.tgz
Collection of helper functions used by Babel transforms.
Library home page: https://registry.npmjs.org/@babel/helpers/-/helpers-7.29.2.tgz
Path to dependency file: /OPENAPI-REST-API/openapi-client/javascript/package.json
Path to vulnerable library: /OPENAPI-REST-API/openapi-client/javascript/node_modules/@babel/helpers/package.json,/OPENAPI-REST-API/swagger-client/javascript/node_modules/@babel/helpers/package.json
Dependency Hierarchy:
- cli-7.28.6.tgz (Root Library)
- core-7.29.0.tgz
- ❌ helpers-7.29.2.tgz (Vulnerable Library)
Found in HEAD commit: 1f70e2feccb7006c8d32cc7d4fe62f5cf5e5c34d
Found in base branch: master
Vulnerability Details
Babel is a compiler for writing next generation JavaScript. When using versions of Babel prior to 7.26.10 and 8.0.0-alpha.17 to compile regular expression named capturing groups, Babel will generate a polyfill for the ".replace" method that has quadratic complexity on some specific replacement pattern strings (i.e. the second argument passed to ".replace"). Generated code is vulnerable if all the following conditions are true: Using Babel to compile regular expression named capturing groups, using the ".replace" method on a regular expression that contains named capturing groups, and the code using untrusted strings as the second argument of ".replace". This problem has been fixed in "@babel/helpers" and "@babel/runtime" 7.26.10 and 8.0.0-alpha.17. It's likely that individual users do not directly depend on "@babel/helpers", and instead depend on "@babel/core" (which itself depends on "@babel/helpers"). Upgrading to "@babel/core" 7.26.10 is not required, but it guarantees use of a new enough "@babel/helpers" version. Note that just updating Babel dependencies is not enough; one will also need to re-compile the code. No known workarounds are available.
Publish Date: 2025-03-11
URL: CVE-2025-27789
CVSS 3 Score Details (6.2)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Local
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: High
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Origin: GHSA-968p-4wvh-cqc8
Release Date: 2025-03-11
Fix Resolution: @babel/runtime - 8.0.0-alpha.17,@babel/helpers - 8.0.0-alpha.17,@babel/runtime-corejs3 - 8.0.0-alpha.17,@babel/runtime-corejs3 - 7.26.10,https://github.com/babel/babel.git - v7.26.10,@babel/runtime-corejs2 - 8.0.0-alpha.17,@babel/runtime - 7.26.10,@babel/helpers - 7.26.10,@babel/runtime-corejs2 - 7.26.10
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CVE-2025-27789 - Medium Severity Vulnerability
Collection of helper functions used by Babel transforms.
Library home page: https://registry.npmjs.org/@babel/helpers/-/helpers-7.29.2.tgz
Path to dependency file: /OPENAPI-REST-API/openapi-client/javascript/package.json
Path to vulnerable library: /OPENAPI-REST-API/openapi-client/javascript/node_modules/@babel/helpers/package.json,/OPENAPI-REST-API/swagger-client/javascript/node_modules/@babel/helpers/package.json
Dependency Hierarchy:
Found in HEAD commit: 1f70e2feccb7006c8d32cc7d4fe62f5cf5e5c34d
Found in base branch: master
Babel is a compiler for writing next generation JavaScript. When using versions of Babel prior to 7.26.10 and 8.0.0-alpha.17 to compile regular expression named capturing groups, Babel will generate a polyfill for the ".replace" method that has quadratic complexity on some specific replacement pattern strings (i.e. the second argument passed to ".replace"). Generated code is vulnerable if all the following conditions are true: Using Babel to compile regular expression named capturing groups, using the ".replace" method on a regular expression that contains named capturing groups, and the code using untrusted strings as the second argument of ".replace". This problem has been fixed in "@babel/helpers" and "@babel/runtime" 7.26.10 and 8.0.0-alpha.17. It's likely that individual users do not directly depend on "@babel/helpers", and instead depend on "@babel/core" (which itself depends on "@babel/helpers"). Upgrading to "@babel/core" 7.26.10 is not required, but it guarantees use of a new enough "@babel/helpers" version. Note that just updating Babel dependencies is not enough; one will also need to re-compile the code. No known workarounds are available.
Publish Date: 2025-03-11
URL: CVE-2025-27789
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Local
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: High
For more information on CVSS3 Scores, click here.Type: Upgrade version
Origin: GHSA-968p-4wvh-cqc8
Release Date: 2025-03-11
Fix Resolution: @babel/runtime - 8.0.0-alpha.17,@babel/helpers - 8.0.0-alpha.17,@babel/runtime-corejs3 - 8.0.0-alpha.17,@babel/runtime-corejs3 - 7.26.10,https://github.com/babel/babel.git - v7.26.10,@babel/runtime-corejs2 - 8.0.0-alpha.17,@babel/runtime - 7.26.10,@babel/helpers - 7.26.10,@babel/runtime-corejs2 - 7.26.10
Step up your Open Source Security Game with Mend here