CVE-2026-69153mediumCWE-200CWE-22

CVE-2026-69153: falha de média gravidade em postcss

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

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13Vexday Risk Score

Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.

ssvc Trackcvss 6.3epss 0.5%
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.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Produtos afetados
postcss · postcss
CVEs relacionadas — postcss

No mesmo produto, das mais perigosas para as menos.

CVE-2026-45623HIGHPostCSS: Arbitrary file read and information disclosure via attacker-controlled sourceMappingURL in CSS commentsEPSS 0.6%CVE-2026-73646HIGHPostCSS: Path Traversal in Previous Source Map Auto-Loading (sourceMappingURL) leads to Arbitrary .map File DisclosureEPSS 0.5%CVE-2026-41305MEDIUMPostCSS has XSS via Unescaped </style> in its CSS Stringify OutputEPSS 0.2%