Kube-compare: container:// reference extraction runs the image entrypoint and silently escalates to sudo (CVE-2026-87114) | HOL Guard CVE

High · CVSS 7.1CVE-2026-87114

Kube-compare: container:// reference extraction runs the image entrypoint and silently escalates to sudo

Answer in brief

CVE-2026-87114 records a High severity (CVSS 7.1) vulnerability in Kube-compare: container:// reference extraction runs the image entrypoint and silently escalates to sudo. The current sources do not mark it as known exploited. The current feed maps Red Hat/pen-drive/pen-drive-scanner-rhel9 (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 28, 2026Updated Sep 28, 2026Source checked Sep 28, 2026First seen by HOL Sep 28, 2026Material review Sep 28, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.1
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 7.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Red Hat/pen-drive/pen-drive-scanner-rhel9 (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Red Hat/pen-drive/pen-drive-scanner-rhel9generic	*	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Red Hat/pen-drive/pen-drive-scanner-rhel9.
Review the reported fix. Source-reported workaround: To mitigate this issue, users of `kube-compare` should ensure that any container images referenced via the `container://` scheme are from trusted sources. Avoid using untrusted or unverified container images as reference paths. If `docker` is configured to require `sudo` for daemon socket access, consider reviewing `sudo` policies to limit `docker` command execution to trusted users and contexts.

Evidence timeline and material changes

Published upstream
Sep 28, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 28, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 28, 2026

Sources and claim methodology

Upstream source description

A flaw was found in kube-compare. When processing a 'container://' reference path, the tool incorrectly executes an untrusted container image's entrypoint instead of merely extracting data from a stopped container. This allows a remote attacker to achieve arbitrary code execution on the operator's workstation. If the Docker daemon requires elevated privileges, the untrusted code may execute with root-mediated daemon privileges, posing a significant security risk.

Quoted source text, attributed separately from HOL analysis.