Withdrawn by the publisher.

Affected: CleanStart: npm

Package npm version 11.14.0-r3 fixes 2 vulnerabilities: CVE-2026-53655, CVE-2026-9358

A vulnerability was determined in postcss-selector-parser up to 6.1.2/7.1.2. Affected is the function toString of the file src/selectors/container.js of the component AST Serialization. Executing a manipulation can lead to uncontrolled recursion. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version 6.1.3 and 7.1.3 is able to address this issue. This patch is called 5bc698cef66f8abd12610dc623e5d67cbc0f869d. It is suggested to upgrade the affected component. The vendor explains, that according to his definition "DoS on server-side on user-generated CSS is low risk for us (since most users compile own CSS with PostCSS)." The commits were backported to 6.x branch, which was the most downloaded version.

Affected: npm: postcss-selector-parser

A vulnerability was determined in postcss-selector-parser before 6.1.3 and 7.1.1. Affected is the function toString of the file src/selectors/container.js of the component AST Serialization. Executing a manipulation can lead to uncontrolled recursion. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor explains, that according to his definition "DoS on server-side on user-generated CSS is low risk for us (since most users compile own CSS with PostCSS)."

undici: undici: Information disclosure and data integrity issues due to incorrect Socks5ProxyAgent connection routing postcss-selector-parser: Postcss: Denial of Service via uncontrolled recursion in AST Serialization undici: undici WebSocket client vulnerable to denial of service via cumulative fragment bypass undici: undici: Man-in-the-Middle attack via ignored TLS options with SOCKS5 proxy urllib3: urllib3: Denial of Service due to excessive HTTP response decompression brace-expansion: brace-expansion: Denial of Service due to excessive memory allocation when expanding large numeric ranges

Affected: Ubuntu:20.04:LTS: node-css-loader, Ubuntu:22.04:LTS: node-css-loader, Ubuntu:24.04:LTS: node-css-loader, Ubuntu:25.10: node-css-loader, Ubuntu:26.04:LTS: node-css-loader

A vulnerability was determined in postcss-selector-parser up to 6.1.2/7.1.2. Affected is the function toString of the file src/selectors/container.js of the component AST Serialization. Executing a manipulation can lead to uncontrolled recursion. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version 6.1.3 and 7.1.3 is able to address this issue. This patch is called 5bc698cef66f8abd12610dc623e5d67cbc0f869d. It is suggested to upgrade the affected component. The vendor explains, that according to his definition "DoS on server-side on user-generated CSS is low risk for us (since most users compile own CSS with PostCSS)." The commits were backported to 6.x branch, which was the most downloaded version.