CVE-2026-1837

المصدر الرسمي: NVD

العودة للثغرات المصدر الرسمي

مستوى الخطورة

عالية (High)

درجة CVSS

8.7

حالة الاستغلال KEV

غير مدرجة حاليًا

تاريخ النشر

2026-02-11

وصف الثغرة

A specially-crafted file can cause libjxl's decoder to write pixel data to uninitialized unallocated memory. Soon after that data from another uninitialized unallocated region is copied to pixel data. This can be done by requesting color transformation of grayscale images to another grayscale color space. Buffers allocated for 1-float-per-pixel are used as if they are allocated for 3-float-per-pixel. That happens only if LCMS2 is used as CMS engine. There is another CMS engine available (selected by build flags).

الأثر المحتمل

لم تتوفر تفاصيل إضافية في المصدر الرسمي.

التوصيات والمعالجة

لم تتوفر تفاصيل إضافية في المصدر الرسمي.\nراجع روابط المصدر الرسمية.

حالة الاستغلال (KEV)

لا يوجد إدراج حاليًا في قائمة KEV.

المراجع الرسمية

https://github.com/libjxl/libjxl/issues/4549

English Technical Fields

Description: A specially-crafted file can cause libjxl's decoder to write pixel data to uninitialized unallocated memory. Soon after that data from another uninitialized unallocated region is copied to pixel data. This can be done by requesting color transformation of grayscale images to another grayscale color space. Buffers allocated for 1-float-per-pixel are used as if they are allocated for 3-float-per-pixel. That happens only if LCMS2 is used as CMS engine. There is another CMS engine available (selected by build flags).

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/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