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  4. CVE 2026 15801 cri o cri o insufficient validation during
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Back to active CVEs
High · CVSS 8.0CVE-2026-15801

Cri-o: cri-o: insufficient validation during container checkpoint restoreCVE-2026-15801

Answer in brief

CVE-2026-15801 records a High severity (CVSS 8.0) vulnerability in Cri-o: cri-o: insufficient validation during container checkpoint restore. The current sources do not mark it as known exploited. The current feed maps Red Hat/cri-o (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 21, 2026Updated Nov 4, 2026Source checked Nov 5, 2026First seen by HOL Sep 21, 2026Material review Nov 4, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.0
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 8.0. 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/cri-o (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Red Hat/cri-ogeneric*Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Red Hat/cri-o.
  2. 2Review the reported fix. Source-reported workaround: Until the relevant CRI-O/OpenShift security updates are available, this issue can be mitigated by implementing one or more of the following measures: 1. Do not enable container checkpoint and restore functionality unless it is explicitly required for your environment. 2. Restrict permissions to create workloads and to access node-level container runtime interfaces to trusted administrators only. 3. Do not restore containers from untrusted or unverified checkpoint sources.

Evidence timeline and material changes

  1. Published upstream

    Sep 21, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 4, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 21, 2026

Sources and claim methodology

  • Source referenceaccess.redhat.com
  • Source referencebugzilla.redhat.com
Upstream source description

A vulnerability was found in CRI-O related to the container checkpoint and restore feature. When CRI-O is configured to restore containers from checkpoint archives, insufficient validation of restore metadata may allow a user with sufficient privileges to perform unintended operations on the host filesystem. Successful exploitation requires that container checkpoint and restore functionality is enabled, which is not the default configuration. An attacker must also be able to trigger restoration of a container from untrusted checkpoint content.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Apache Juneau: Path traversal in DirectoryResource allows reading files outside the configured root directoryAlso CWE-22

Record context

Vulnerability class
Path Traversal
EPSS
Not reported
CWE IDs
CWE-22
Source
CVE List V5
Source checked
Nov 5, 2026
References
2 linked sources
Open source record