CVE-2026-92454

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 v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 4.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

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

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-2026-92454

Mitre link : CVE-2026-92454

CVE.ORG link : CVE-2026-92454

JSON object : View

Products Affected

No product.

CWE

CWE-125

Out-of-bounds Read

CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')

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