CVE-2026-44660
HighCVSS 7.5Summary
UltraJSON to szybki enkoder i dekoder JSON napisany w czystym C z powiązaniami dla Pythona 3.7+. Przed wersją 5.12.1, gdy ujson.dump() zapisuje do obiektu podobnego do pliku i operacja zapisu zgłasza wyjątek, obiekt ciągu JSON nie jest dekrementowany, co prowadzi do wycieku pamięci.
Risk Assessment
Każda nieudana operacja zapisu powoduje wyciek pamięci o pełnym rozmiarze serializowanego ładunku, co może prowadzić do degradacji wydajności aplikacji i zwiększonego zużycia zasobów systemowych.
Recommendation
Zaleca się aktualizację do wersji 5.12.1 lub nowszej, aby usunąć tę podatność i zapobiec wyciekom pamięci.
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Original NVD description (English source)
UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. Prior to 5.12.1, when ujson.dump() writes to a file-like object and the write operation raises an exception, the serialized JSON string object is not decremented, leaking memory. Each failed write operation leaks the full size of the serialized payload. This vulnerability is fixed in 5.12.1.