What is CVE-2026-18107?

CVE-2026-18107 is a high-severity vulnerability in Red Hat Enterprise Linux 10, classified under Improper Privilege Management. CVSS score: 7.8/10. Published 2026-07-28.

How severe is CVE-2026-18107?

High severity. CVSS v3 base score is 7.8 out of 10.

Privilege escalation in Red Hat Enterprise Linux 10

CVE-2026-18107

A flaw was found in CRIU's handling of restartable sequences (rseq) during checkpoint/restore. A malicious process inside a container can register an rseq critical section that hijacks CRIU's parasite code injection during checkpoint, allo…

Vulnerability class: Privilege Escalation

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Red Hat Openshift Container Platform 4

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

References

secalert@redhat.com (x_refsource_REDHAT, vdb-entry)
RHBZ#2508140 (x_refsource_REDHAT, issue-tracking)
secalert@redhat.com

Frequently asked questions

What is CVE-2026-18107?: CVE-2026-18107 is a high-severity vulnerability in Red Hat Enterprise Linux 10, classified under Improper Privilege Management. CVSS score: 7.8/10. Published 2026-07-28.
How severe is CVE-2026-18107?: High severity. CVSS v3 base score is 7.8 out of 10.