postcss vulnerabilities

Browse known CVEs and advisories by package and ecosystem. Severity tells you the worst case. What determines real risk is whether the vulnerable code actually runs in your applications.

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CVE-IDSeverityPackage summary

CVE-2026-41305Mediumpostcss: PostCSS has XSS via Unescaped </style> in its CSS Stringify Output CVE-2023-44270Mediumpostcss: PostCSS line return parsing error CVE-2021-23382Mediumpostcss: Regular Expression Denial of Service in postcss CVE-2021-23368Mediumpostcss: Regular Expression Denial of Service in postcss

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