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An issue was discovered in PostCSS before 8.4.31. It affects linters using PostCSS to parse external Cascading Style Sheets (CSS). There may be \r discrepancies, as demonstrated by @font-face{ font:(\r/*);} in a rule.
This vulnerability affects linters using PostCSS to parse external untrusted CSS. An attacker can prepare CSS in such a way that it will contains parts parsed by PostCSS as a CSS comment. After processing by PostCSS, it will be included in the PostCSS output in CSS nodes (rules, properties) despite being originally included in a comment.
Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.
This PR includes no changesets
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renovatebot
changed the title
chore(deps): update dependency postcss to v8.4.31 [security]
fix(deps): update dependency postcss to v8.4.31 [security]
Dec 10, 2024
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This PR contains the following updates:
8.4.27
->8.4.31
GitHub Vulnerability Alerts
CVE-2023-44270
An issue was discovered in PostCSS before 8.4.31. It affects linters using PostCSS to parse external Cascading Style Sheets (CSS). There may be
\r
discrepancies, as demonstrated by@font-face{ font:(\r/*);}
in a rule.This vulnerability affects linters using PostCSS to parse external untrusted CSS. An attacker can prepare CSS in such a way that it will contains parts parsed by PostCSS as a CSS comment. After processing by PostCSS, it will be included in the PostCSS output in CSS nodes (rules, properties) despite being originally included in a comment.
Release Notes
postcss/postcss (postcss)
v8.4.31
Compare Source
\r
parsing to fix CVE-2023-44270.v8.4.30
Compare Source
v8.4.29
Compare Source
Node#source.offset
(by Ido Rosenthal).v8.4.28
Compare Source
Root.source.end
for better source map (by Romain Menke).Result.root
types whenprocess()
has no parser.Configuration
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