High7.8Red Hat Linux

High [CVE-2026-46300] "Fragnesia" is a variant of Dirty Frag vulnerability in the ESP/XFRM leading to Local Privilege Escalation (LPE) vulnerability in the Linux kernel

This high-severity Red Hat Linux advisory covers CVE-2026-46300 affecting NVIDIA for RHEL 10, Red Hat OpenShift Container Platform 4.21, Red Hat OpenShift Container Platform 4.12.

CVE-2026-46300 Published May 13, 2026

CVE-2026-46300

Affected products & platforms

Red Hat LinuxUnclassified

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Summary

"Fragnesia" is a variant of Dirty Frag vulnerability in the ESP/XFRM leading to Local Privilege Escalation (LPE) vulnerability in the Linux kernel. Red Hat rates this important (CVSS 7.8).

Weakness: CWE-123. Affected package(s): rhcos, kernel-rt, kernel, openshift, kpatch-patch.

Resolved in Red Hat advisory RHSA-2026:23470 — update the affected packages (`sudo dnf update`).

Affected products named by the advisory: NVIDIA for RHEL 10; Red Hat OpenShift Container Platform 4.21; Red Hat OpenShift Container Platform 4.12; Red Hat OpenShift Container Platform 4.13; and 64 more.

Affected versions

rhcos-412.86.202605271418-0
kernel-rt-0:5.14.0-70.180.1.rt21.252.el9_0
rhcos-414.92.202606231112-0
kernel-0:5.14.0-687.10.1.el9_8
kernel-0:5.14.0-570.116.1.el9_6
rhcos-4.21.9.6.202606030721-0
rhcos-4.19.9.6.202606031700-0
openshift-0:4.21.0-202605142021.p2.geab2218.assembly.stream.el10
kernel-0:6.12.0-211.8.el10nv
kernel-rt-0:5.14.0-284.172.1.rt14.457.el9_2
kernel-0:4.18.0-477.143.1.el8_8
kernel-0:6.12.0-231.12.el10nv

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions

RHSA-2026:23470

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Update the affected package(s) to the fixed version shipped in RHSA-2026:23470 (`sudo dnf update` / `yum update`).

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

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