Integer Overflow or Wraparound Affecting spice package, versions *


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.4% (34th percentile)

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  • Snyk IDSNYK-ECHOLATEST-SPICE-21185085
  • published18 Oct 2026
  • disclosed16 Oct 2026

Introduced: 16 Oct 2026

NewCVE-2026-105959  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest spice.

NVD Description

Note: Versions mentioned in the description apply only to the upstream spice package and not the spice package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

A flaw was found in spice-server. The GLZ encoder dictionary restore path truncates a size_t allocation size to int when calling the malloc callback, allowing a malicious authenticated SPICE client during VM live migration to trigger a massive heap buffer overflow by sending a crafted max_encoders value in migration data.

CVSS Base Scores

version 3.1