CVE-2026-92454: medium-severity vulnerability in Eclipse ThreadX - GUIX
JPEG decoder: truncated segments are read past the image buffer, and a zero sampling factor hangs the decode
Published
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.8epss 0.2%
The GUIX software JPEG decoder reads four kinds of marker segment without checking that each is long enough to hold what it reads. A truncated segment is therefore read past the end of the caller's image buffer. Separately, a zero chroma sampling factor makes the block decode loop non-terminating. Both reproduce in the default configuration, in which `GX_SOFTWARE_DECODER_SUPPORT` is enabled.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
Eclipse Foundation · Eclipse ThreadX - GUIXRelated CVEs — Eclipse ThreadX - GUIX
In the same product, most dangerous first.
CVE-2026-91057MEDIUMOut-of-bounds read when a multi-line text view string ends with a carriage returnEPSS 0.2%CVE-2026-91059MEDIUMJPEG decoder: a duplicate SOF0 after SOS publishes a pixelmap that misreports its own allocation sizeEPSS 0.2%CVE-2026-92446MEDIUMGUIX binary resource loader reads past the end of a resource, because no length for it ever reaches the loaderEPSS 0.2%CVE-2026-92449MEDIUMBinary resource loader: unbounded map_id from a theme file causes a heap out-of-bounds write in the GUIX-allocated arenaEPSS 0.2%CVE-2026-91186HIGHPNG decoder: a duplicate IHDR chunk after IDAT resizes the image after allocation, causing a heap out-of-bounds writeEPSS 0.2%CVE-2026-91189HIGHGUIX binary resource loader: unvalidated glyph range causes an integer underflow and a heap out-of-bounds write when loading an untrusted font or themeEPSS 0.1%