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PostCSS is a popular CSS postprocessor that transforms CSS files into an Abstract Syntax Tree, allowing for analysis and modification of its rules. The CVE-2026-69153 vulnerability affects PostCSS versions prior to 8.5.19, allowing an attacker to cause PreviousMap.loadFile() to read an unintended source-map file by supplying an absolute or directory-traversal sourceMappingURL. This issue can lead to the e [truncated]
A high-severity vulnerability was discovered in PostCSS, a popular CSS processing library used by developers to analyze and modify CSS rules. The issue, tracked as CVE-2026-45623, affects versions 8.5.11 and prior, allowing an attacker to exploit this vulnerability to read arbitrary files on the host system, potentially leading to sensitive information disclosure through manipulated /*# sourceMappingURL=P [truncated]
A vulnerability in postcss up to version 7.1.1 allows uncontrolled recursion in the `toString` function of `src/selectors/container.js` during AST serialization. An attacker can trigger this remotely by manipulating user-generated CSS input, leading to denial of service through stack exhaustion. The vendor has publicly stated that server-side DoS on user-generated CSS is considered low risk, as most users [truncated]