CVE-2026-44594
HighCVSS 7.5Exploitation Probability (EPSS)
Low risk25th percentile - higher than 25% of all known CVEs
Summary
W wersji 137 i wcześniejszych w esm.sh, no-build CDN dla rozwoju webowego, występuje podatność Local File Inclusion (LFI) w obsłudze pola browser w pliku package.json przez wtyczkę esbuild. Atakujący może opublikować pakiet npm, który spowoduje, że serwer odczyta i zwróci dowolne pliki z systemu plików hosta podczas procesu budowania.
Risk Assessment
Podatność ta może prowadzić do ujawnienia wrażliwych danych z systemu plików, co stwarza poważne zagrożenie dla bezpieczeństwa organizacji. Atakujący może wykorzystać tę lukę do uzyskania dostępu do poufnych informacji.
Recommendation
Zaleca się aktualizację do najnowszej wersji esm.sh, aby usunąć tę podatność. Należy również monitorować i weryfikować publikowane pakiety npm w celu zminimalizowania ryzyka wykorzystania tej luki.
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Original NVD description (English source)
esm.sh is a no-build content delivery network (CDN) for web development. In 137 and earlier, a Local File Inclusion (LFI) vulnerability exists in the esbuild plugin's handling of the browser field in package.json. An attacker can publish an npm package that causes the server to read and return arbitrary files from the host filesystem during the build process.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

