CVE-2026-92454

MEDIUM6.1

Published 2026-10-20 · Updated 2026-10-20 · Source emo@eclipse.org

Description

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 vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

CWE-125CWE-835

References

https://github.com/eclipse-threadx/guix/security/advisories/GHSA-pppm-h3g4-986x

View on NVD

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