PostCSS takes a CSS file and provides an API to analyze and modify its rules by transforming the rules into an Abstract Syntax Tree. Prior to 8.5.19,...

原文の説明

取得元が公開している説明をそのまま載せています (多くは英語)。

PostCSS takes a CSS file and provides an API to analyze and modify its rules by transforming the rules into an Abstract Syntax Tree. Prior to 8.5.19, if from is unset, an attacker can cause PreviousMap.loadFile() to read an unintended source-map file by supplying an absolute or directory-traversal sourceMappingURL. The resulting map’s sources and sourcesContent may then be exposed to the application. This issue is fixed in version 8.5.19.

出典: OSV.dev (Open Source Vulnerabilities) OSV

影響パッケージ

Debian:12 node-postcss

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:13 node-postcss

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:14 node-postcss

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.5.23+~cs10.2.23-1"}]}]

参照URL

advisory security-tracker.debian.org