CVE-2026-5367
High
Description
A flaw was found in OVN (Open Virtual Network). A remote attacker, by sending crafted DHCPv6 (Dynamic Host Configuration Protocol for IPv6) SOLICIT packets with an inflated Client ID length, could cause the ovn-controller to read beyond the bounds of a packet. This out-of-bounds read can lead to the disclosure of sensitive information stored in heap memory, which is then returned to the attacker's virtual machine port.
SeverityHigh
CVSS8.6
Exploit probability—
Product
Enterprise Linux 10
PublishedApr 24, 2026
First seenApr 24, 2026
Weakness typeCWE-130CWE-130
How to fix
Vendor advisories
- access.redhat.com/errata/RHSA-2026:11694
- access.redhat.com/errata/RHSA-2026:11695
- access.redhat.com/errata/RHSA-2026:11696
- access.redhat.com/errata/RHSA-2026:11698
- access.redhat.com/errata/RHSA-2026:11700
- access.redhat.com/errata/RHSA-2026:11701
- access.redhat.com/errata/RHSA-2026:11702
- access.redhat.com/errata/RHSA-2026:22110
- access.redhat.com/errata/RHSA-2026:22111
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| enterprise_linux 10 | No range specified | — |
| enterprise_linux 8 | No range specified | — |
| enterprise_linux 9 | No range specified | — |
| Red Hat Red Hat OpenShift Container Platform 4 | No range specified | — |
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