Vulnerability · Published Sep 21, 2026 · Assigned by redhat

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

High 8.0

In plain English

A high-severity path traversal in Red Hat OpenShift Container Platform 4 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities).

Severity (CVSS 3.1)8.0High

Exploit odds (30 days)0.5%top 58.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Red Hat	Red Hat OpenShift Container Platform 4	see references
Red Hat	Red Hat OpenShift Container Platform 5	see references

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

References

https://access.redhat.com/security/cve/CVE-2026-15801 vdb-entry, x_refsource_REDHAT
RHBZ#2500823 issue-tracking, x_refsource_REDHAT