CVE-2026-92747

Cockpit-machines: cockpit-machines: sensitive data exposure of guest credentials via json argument in process list

A flaw was found in `cockpit-machines`. This vulnerability allows a local attacker with the ability to inspect running processes to expose sensitive guest virtual machine (VM) credentials, such as `rootPassword` and `userPassword`. This occurs when the `install_machine.py` script passes these credentials as a JSON command-line argument during VM creation or installation. The exposure is limited to the period when the installation workflow is active and depends on host process-visibility policies.

CVSS 3.1 · 5 Medium EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Enterprise Linux

CVE-2026-92768

Cockpit-machines: cockpit-machines: sensitive data exposure via command-line arguments

A flaw was found in cockpit-machines. This vulnerability allows a local attacker to expose sensitive Virtual Machine (VM) credentials, including plaintext passwords, by inspecting process command-line arguments during VM creation or installation. The cockpit-machines component passes password values directly on the command line, making them visible to other local users on systems where process arguments are not restricted. Successful exploitation leads to information disclosure, potentially compromising VM access.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Enterprise Linux

CVE-2026-92745

Cockpit-machines: cockpit-machines: information disclosure of rhsm offline token via process arguments

A flaw was found in cockpit-machines. This vulnerability allows a local attacker with the ability to inspect process metadata to disclose a sensitive Red Hat Subscription Management (RHSM) offline token. The token is exposed when it is passed as a command-line argument to a helper script during the token validation process. Successful exploitation could lead to the compromise of confidentiality, as the exposed token can be used to request access tokens.

CVSS 3.1 · 5 Medium EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Enterprise Linux

CVE-2026-86476

Gstreamer1-plugins-base: gst-plugins-base: heap buffer overflow via unvalidated gstvideometa plane extents in gst_video_frame_map_id and video_meta_deserialize

A flaw was found in gst-plugins-base. A heap buffer overflow can be triggered when processing video buffers whose attached GstVideoMeta metadata declares plane strides and offsets that exceed the actual backing memory allocation. The metadata is not range-checked during deserialization, and the video frame mapping code does not verify that the declared plane geometry fits within the buffer before allowing consumers to read or write video data. A local attacker who controls the sending side of a GStreamer inter-process IPC pipeline can deliver a crafted buffer carrying fabricated strides, causing the receiving process to read or write beyond heap boundaries. Successful exploitation can cause a denial of service or potentially allow code execution within the affected process.

CVSS 3.1 · 8.4 High EPSS < 1% KEV · Not listed

Vendors

Red Hat Redhat

Products

Enterprise Linux Enterprise Linux Enterprise Linux Eus and 1 more

CVE-2026-96275

Flatpak: flatpak: arbitrary write access as root via extra-data extraction

A malicious or compromised Flatpak repository can write attacker-controlled content to arbitrary locations on the host filesystem via extract_extra_data(). On system installs, the write happens as root. Two issues combine: `files/extra` is resolved via path operations that follow symlinks, and blob names from `xa.extra-data-sources` are not sanitized against `..` traversal.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Flatpak Redhat

Products

Flatpak Enterprise Linux Enterprise Linux Eus and 6 more

CVE-2026-88924

Gvfs: gvfs-admin socket ownership race permits local root

A flaw was found in the admin backend of gvfs. The privileged gvfsd-admin daemon changes the ownership of newly created private D-Bus sockets by calling the link-following chown() function on a pathname inside a user-controlled directory. A local attacker can exploit this via a Time-of-Check Time-of-Use (TOCTOU) race condition and exchange the socket pathname with a symbolic link pointing to an arbitrary root-owned file (such as /etc/pam.d/su). The daemon subsequently follows the symlink and changes the ownership of the targeted root-owned file to the attacker's user ID. This allows an authenticated local attacker to modify critical system files, leading to a full local privilege escalation to root.

CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed

Vendors

Gnome Redhat

Products

Gvfs Enterprise Linux Enterprise Linux Eus and 3 more

CVE-2026-84268

Gvfs: sftp: heap-based buffer overflow in read_reply()

A flaw was found in the SFTP backend in gvfs. When mounting a share and reading a file, a malicious SFTP server can cause read_reply() to process a length that exceeds the size requested by the client. The function does not verify the server-provided length against the allocated buffer size, causing the operation to write past the intended boundaries. This issue allows a malicious server to corrupt adjacent heap memory in the gvfsd-sftp process, resulting in a denial of service as the process aborts upon detecting the heap corruption or potentially allowing arbitrary code execution.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Enterprise Linux Enterprise Linux Eus Rhel Aus and 5 more

CVE-2026-91149

Cockpit: cockpit: denial of service via unbounded connection thread spawning

A flaw was found in Cockpit. An unauthenticated remote attacker can exploit this vulnerability by initiating and sustaining numerous simultaneous connections to the `cockpit-tls` service. This forces the service to create an unbounded number of detached threads, consuming system resources such as memory and file descriptors. The primary consequence is a denial of service (DoS), leading to degradation or complete unavailability of the Cockpit service for legitimate users.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Enterprise Linux Openshift Dev Spaces Openshift Devspaces and 1 more

CVE-2026-86320

Flatpak-builder: host code execution via `git am` hook execution in patch source extraction (`use-git-am`)

A flaw was found in flatpak-builder where Git hooks are not disabled when applying patch sources with use-git-am: true. An attacker who can provide a malicious source containing a Git post-applypatch hook can cause the hook to execute on the host during the build process, resulting in arbitrary code execution with the privileges of the user running flatpak-builder.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Red Hat Redhat

Products

Enterprise Linux Enterprise Linux Enterprise Linux Eus and 5 more

CVE-2026-93683

Dpdk: dpdk: guest-triggered out-of-bounds walk via vhost indirect descriptor length toctou

A flaw was found in the DPDK vhost library. When handling a virtio indirect descriptor table, the host reads the table length more than once from guest memory and can allocate a host copy before validating that length. A guest that changes the length between those reads, or that supplies an out-of-range next index on a small host copy in the vDPA relay path, can cause the host vhost process to walk past the validated mapping or heap copy. That can crash or disrupt the vhost process. Out-of-bounds bytes are consumed as descriptor fields for GPA translation and are not returned to the guest as payload. This is a residual issue in the non-contiguous indirect descriptor copy path introduced as part of the CVE-2018-1059 fix.

CVSS 3.1 · 6.4 Medium EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Enterprise Linux Openshift Openstack

CVE-2026-86856

Dpdk: dpdk: stack and heap buffer overflow in nfp vdpa driver

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.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Enterprise Linux Openshift Openstack

CVE-2026-86849

Dpdk: dpdk: integer overflow combined with missing validation leads to host buffer overflow in vhost-crypto

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.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Enterprise Linux Openshift Openstack

CVE-2026-86847

Dpdk: dpdk: guest can trigger infinite loop in vhost-crypto writeback chain cleanup

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 or crash.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Enterprise Linux Openshift Openstack

CVE-2026-86846

Dpdk: dpdk: guest can trigger out-of-bounds write by controlling avail ring index in vhost-crypto

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 backend.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Dpdk Redhat

Products

Dpdk Enterprise Linux Openshift and 1 more

CVE-2026-86845

Dpdk: dpdk: guest-triggered use-after-free and type confusion in vhost-crypto session cleanup

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 use-after-free or type confusion in the host vhost-crypto backend.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Enterprise Linux Openshift Openstack

CVE-2026-86566

Dpdk: dpdk: guest with runt rx descriptors underflows copy length in vhost enqueue (split and packed rings)

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.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Dpdk Red Hat Redhat

Products

Dpdk Enterprise Linux Enterprise Linux and 3 more

CVE-2026-86561

Dpdk: dpdk: missing memory size validation before mmap in vhost memory region setup

A flaw was found in DPDK lib/vhost. Memory size is not adequately validated before mmap during vhost memory-region setup, which can lead to a host crash or memory corruption.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Dpdk Red Hat Redhat

Products

Dpdk Enterprise Linux Enterprise Linux and 5 more

CVE-2026-100236

Dpdk: dpdk: heap out-of-bounds read/write in gso header copy

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 a header longer than the configured GSO segment size can underflow the payload-size calculation. A remote or guest-supplied packet processed with software GSO can trigger an out-of-bounds read or write.

CVSS 3.1 · 8.6 High EPSS < 1% KEV · Not listed

Vendors

Dpdk Redhat

Products

Dpdk Enterprise Linux Openshift and 1 more

CVE-2026-86848

Dpdk: dpdk: time-of-check/time-of-use vulnerability allowing guest-triggered out-of-bounds write in vhost-crypto

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 backend.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Enterprise Linux Openshift Openstack

CVE-2026-86567

Dpdk: dpdk: vduse handler fails to invalidate vring pointers when iotlb is invalidated, leading to use-after-unmap

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.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Dpdk Red Hat Redhat

Products

Dpdk Enterprise Linux Enterprise Linux and 5 more