PT-2026-67450 · Postcss · Postcss

CVE-2026-69153 · Publicado 2026-08-03 · Atualizado 2026-08-03

NVD

CVSS v4.0

6.3

Média

Vetor base

AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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.

Exploit

Correção

Information Disclosure

Path traversal

Enumeração de Fraquezas

CWE-200

CWE-22

Identificadores relacionados

CVE-2026-69153

Produtos afetados

Postcss

Referências · 4

• 🔥 https://github.com/postcss/postcss/security/advisories/GHSA-fxqj-rqcc-2cmp · Exploit
• https://github.com/postcss/postcss/commit/7beca139e70f9075c6b19700fcb00dd8033e5da8 · Nota
• https://github.com/postcss/postcss/releases/tag/8.5.19 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-69153 · Nota de Segurança