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PostCSS PostCSSPostCSS: incomplete fix of CVE-2026-45623 — attacker-controlled sourceMappingURL reads arbitrary .map files when `from` is unset

Risk 29
Severity
6.3
First published (updated )
CVE-2026-69153

npm/postcssPostCSS: Arbitrary file read and information disclosure via attacker-controlled sourceMappingURL in CSS comments

Risk 66
Severity
9.1
First published (updated )
CVE-2026-45623

PostCSS PostCSSAn issue was discovered in PostCSS before 8.4.31. The vulnerability affects linters using PostCSS to…

Risk 18
Severity
4
First published (updated )
REDHAT-BUG-2326998

IBM Data Virtualization on Cloud Pak for DataPostCSS could allow a remote attacker to bypass security restrictions, caused by improper input vali…

Risk 28
Severity
5.3
First published (updated )
CVE-2023-44270

npm/postcssRegular Expression Denial of Service (ReDoS)

Risk 45
Severity
7.5
First published (updated )
CVE-2021-23382
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PostCSS Postcss Node.jsRegular Expression Denial of Service (ReDoS)

Risk 28
Severity
5.3
First published (updated )
CVE-2021-23368

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