CVE-2026-91059

The GUIX JPEG software decoder enforces no ordering on JPEG markers. A file that places a second `SOF0` frame header after `SOS` re-runs the frame header parser after the output buffer has already been allocated and its geometry latched. The decoder returns `GX_SUCCESS` and publishes a `GX_PIXELMAP` whose reported dimensions and `data_size` exceed the allocation behind it. Any consumer that trusts the returned structure reads out of bounds, including GUIX's own display drivers, reached through the ordinary draw path. Reproduces in the shipped default configuration; `GX_SOFTWARE_DECODER_SUPPORT` is enabled by default.

CVSS

No CVSS.

References

Link	Resource
https://github.com/eclipse-threadx/guix/security/advisories/GHSA-cxf2-pgvg-pcw3

Configurations

No configuration.

History

20 Oct 2026, 15:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-20 15:17

Updated : 2026-10-20 19:48

NVD link : CVE-2026-91059

Mitre link : CVE-2026-91059

CVE.ORG link : CVE-2026-91059

JSON object : View

Products Affected

No product.

CWE

CWE-125

Out-of-bounds Read

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