Out-of-bounds Read Affecting openshift4/microshift-bootc-rhel9 package, versions *


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.33% (27th percentile)

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  • Snyk IDSNYK-RHEL9-OPENSHIFT4MICROSHIFTBOOTCRHEL9-21897541
  • published30 Oct 2026
  • disclosed26 Oct 2026

Introduced: 26 Oct 2026

NewCVE-2026-116591  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:9 openshift4/microshift-bootc-rhel9.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openshift4/microshift-bootc-rhel9 package and not the openshift4/microshift-bootc-rhel9 package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

compress provides various compression algorithms. Prior to 1.20.2, the zstd DecodeAll and streaming decoder paths can panic when a crafted two-block frame reaches huff0.ReadTable with an FSE normalized count of 32768 that readNCount stores in int16 as -32768. The wrapped count allows buildDtable to retain stale fse.Scratch decode-table state from the prior block, and nextFast then derives an out-of-range state and indexes beyond the table instead of returning a decode error. Both blocks are required to preserve and then reuse the stale state, allowing untrusted zstd input to crash an application. This issue is fixed in version 1.20.2.

CVSS Base Scores

version 3.1