CVE-2026-92454JPEG decoder: truncated segments are read past the image buffer, and a zero sampling factor hangs the decode
Updated under an hour ago ()
Does this affect you?
It affects Eclipse Foundation Eclipse ThreadX - GUIX. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 6.1 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
- Weakness (CWE)
- CWE-125, CWE-835
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- eclipse
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 20, 2026
- First seen by InfoSec Signals
- Oct 20, 2026
Affected products
Eclipse Foundation Eclipse ThreadX - GUIX eclipse_foundation:eclipse_threadx_guix (from the name) | through 6.5.1.202602a; 6.5.2.202603 not affected | CNA record |
References
- https://github.com/eclipse-threadx/guix/security/advisories/GHSA-pppm-h3g4-986x
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.