Red Hat Openstack Platform 13 Queens vulnerabilities

20 CVEs affecting Red Hat Openstack Platform 13 Queens, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-86856, published 2026-10-14.

Highest priority

Known exploited (CISA KEV) first, then by EPSS exploit probability.

CVE-2026-22797, published 2026-01-19. Critical severity, CVSS 9.9. EPSS: 0.7% chance of exploitation in the next 30 days. An issue was discovered in OpenStack keystonemiddleware 10.5 through 10.7 before 10.7.2, 10.8 and 10.9 before 10.9.1, and 10.10 through 10.12 before 10.12.1. The external_oauth2_token middleware…
CVE-2026-34956, published 2026-05-05. Medium severity, CVSS 5.9. EPSS: 0.6% chance of exploitation in the next 30 days. A flaw was found in Open vSwitch. When Open vSwitch is configured with a conntrack flow using FTP helpers over the userspace datapath, a remote attacker can send a specially crafted FTP stream with…
CVE-2021-4472, published 2025-11-26. Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days. The mistral-dashboard plugin for openstack has a local file inclusion vulnerability through the 'Create Workbook' feature that may result in disclosure of arbitrary local files content.
CVE-2026-24708, published 2026-02-18. High severity, CVSS 8.2. EPSS: 0.4% chance of exploitation in the next 30 days. An issue was discovered in OpenStack Nova before 30.2.2, 31 before 31.2.1, and 32 before 32.1.1. By writing a malicious QCOW header to a root or ephemeral disk and then triggering a resize, a user…
CVE-2026-93834, published 2026-09-25. High severity, CVSS 8.8. EPSS: 0.4% chance of exploitation in the next 30 days. A use-after-free vulnerability was found in QEMU's 9pfs subsystem. A race condition between the main thread and a worker thread when processing concurrent Tlcreate and Twalk requests allows a…
CVE-2026-100236, published 2026-10-14. High severity, CVSS 8.6. EPSS: 0.3% chance of exploitation in the next 30 days. A flaw was found in the DPDK GSO library. When software GSO copies packet headers into a new mbuf, it does not check that the header fits in the source first segment or in the destination buffer, and…
CVE-2026-81627, published 2026-09-18. High severity, CVSS 8.2. EPSS: 0.2% chance of exploitation in the next 30 days. A flaw was found in QEMU. The VAPIC setup hypercall in hw/i386/vapic.c does not validate that the writable RAM alias remains within the option ROM window. A privileged guest user on a Q35/KVM machine…
CVE-2026-86565, published 2026-10-14. High severity, CVSS 8.2. EPSS: 0.2% chance of exploitation in the next 30 days. A flaw was found in DPDK lib/vhost. A guest can desynchronize virtqueue size from inflight descriptor table size, causing an out-of-bounds write in the host vhost process.
CVE-2026-86563, published 2026-10-14. High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days. A flaw was found in DPDK lib/vhost. A double-offset bug in vhost log mapping calculation can lead to incorrect memory access.
CVE-2026-86847, published 2026-10-14. Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days. A flaw was found in DPDK lib/vhost vhost-crypto. Write-back chain cleanup can follow an uninitialized next pointer when mapping a guest descriptor fails, causing the host vhost-crypto process to hang…

Latest

CVE-2026-86856, published 2026-10-14. Medium severity, CVSS 6.5. EPSS: 0.1% chance of exploitation in the next 30 days. A flaw was found in the DPDK nfp vDPA driver. Stack and heap buffers sized for a single queue pair can be overflowed when more virtqueues are configured, leading to a host crash or memory corruption.
CVE-2026-86849, published 2026-10-14. Medium severity, CVSS 6.5. EPSS: 0.1% chance of exploitation in the next 30 days. A flaw was found in DPDK lib/vhost vhost-crypto. Integer overflow in chain length checks, and missing length checks on the RSA path, can overflow a host buffer in the vhost-crypto backend.
CVE-2026-86848, published 2026-10-14. High severity, CVSS 8.8. EPSS: 0.1% chance of exploitation in the next 30 days. A flaw was found in DPDK lib/vhost vhost-crypto. The indirect-descriptor snapshot double-fetches a guest descriptor next index, allowing a malicious guest to cause an out-of-bounds access in the host…
CVE-2026-86846, published 2026-10-14. Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days. A flaw was found in DPDK lib/vhost vhost-crypto. A guest can supply an avail-ring descriptor index that is used without bounds checking, causing an out-of-bounds write in the host vhost-crypto…
CVE-2026-86845, published 2026-10-14. Medium severity, CVSS 6.5. EPSS: 0.1% chance of exploitation in the next 30 days. A flaw was found in DPDK lib/vhost vhost-crypto. Session cleanup can leave a stale cached session pointer, and the data path does not check the session type before attaching it, leading to…
CVE-2026-86567, published 2026-10-14. High severity, CVSS 8.8. EPSS: 0.1% chance of exploitation in the next 30 days. A flaw was found in DPDK lib/vhost. The VDUSE handler fails to invalidate vring pointers when the IOTLB is invalidated, leading to use-after-unmap.
CVE-2026-86566, published 2026-10-14. Medium severity, CVSS 6.5. EPSS: 0.1% chance of exploitation in the next 30 days. A flaw was found in DPDK lib/vhost. A guest with runt RX descriptors can underflow the copy length in vhost enqueue, causing a denial of service in a shared vhost backend such as OVS-DPDK.