Vulnerabilidades do Red Hat Red Hat Enterprise Linux 8

CVE-2026-110927 Média · 4.3 CWE-770 15/10/2026

Openssh: openssh: a compressed payload can expand past the maximum packet size

A flaw was found in OpenSSH. After compression is negotiated, a compressed payload can expand past the maximum supported packet size because the inflate loop does not stop at that limit. Memory use grows in the process handling that connection.

CVE-2026-110924 Média · 4.8 CWE-459 15/10/2026

Openssh: openssh: gssapi delegated credentials can be stored after a failed authentication

A flaw was found in OpenSSH. With GSSAPI authentication enabled, a failed GSSAPI attempt can leave delegated credentials stored for the connection even though user authorization did not succeed. A later successful login on that connection is not authorized by the leftover state.

CVE-2026-110926 Média · 5.3 CWE-203 15/10/2026

Openssh: openssh: shared lz77 compression dictionary leaks plaintext across channels

A flaw was found in OpenSSH. When compression is negotiated, channels on the same connection share one LZ77 dictionary. A peer who can write on one channel can recover plaintext from another channel by chosen-plaintext lengths.

CVE-2026-110925 Média · 5.4 CWE-78 15/10/2026

Openssh: openssh: '$' and '\' in a command-line username expand through %u

A flaw was found in OpenSSH. A username entered on the ssh command line can still contain '$' or a non-trailing backslash. When a configuration expands %u inside ProxyCommand or Match exec, those characters are passed into the shell.

CVE-2026-110923 Média · 6.5 CWE-22 15/10/2026

Openssh: openssh: sftp can write outside the destination directory from a server-supplied path

A flaw was found in OpenSSH. During an sftp copy, a malicious server can supply an empty name, a slash-only path, or a ".." basename that sftp uses as the local destination, writing outside the directory the user selected.

CVE-2026-86856 Média · 6.5 CWE-787 14/10/2026

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.

CVE-2026-86849 Média · 6.5 CWE-787 14/10/2026

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.

CVE-2026-86848 Alta · 8.8 CWE-367 14/10/2026

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.

CVE-2026-86847 Média · 6.5 CWE-824 14/10/2026

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.

CVE-2026-86846 Média · 6.5 CWE-787 14/10/2026

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.

CVE-2026-86845 Média · 6.5 CWE-825 14/10/2026

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.

CVE-2026-86567 Alta · 8.8 CWE-416 14/10/2026

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.

CVE-2026-86566 Média · 6.5 CWE-191 14/10/2026

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.

CVE-2026-110777 Média · 5.7 CWE-200 14/10/2026

Evolution-data-server: local file disclosure via attach file:// uris

A flaw was found in evolution-data-server. Calendar events containing a file:// URI in their ATTACH property automatically read the targeted local file, base64-encode its contents and upload it back to the server when the event is saved. There are no file path restrictions or checks to verify whether the attachment originally came from the server or was added locally. This allows an attacker with access to a shared CalDAV calendar to exfiltrate arbitrary files the user has access to when interacting with malicious calendar events.

CVE-2026-86565 Alta · 8.2 CWE-787 14/10/2026

Dpdk: dpdk: guest can desynchronize virtqueue size from inflight descriptor table size, causing out-of-bounds write

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 Alta · 7.8 CWE-131 14/10/2026

Dpdk: dpdk: double offset bug in vhost log mapping calculation

A flaw was found in DPDK lib/vhost. A double-offset bug in vhost log mapping calculation can lead to incorrect memory access.

CVE-2026-86562 Alta · 7.8 CWE-362 14/10/2026

Dpdk: dpdk: control-queue descriptor double-fetch overflows host heap in dpdk vhost (vduse)

A flaw was found in DPDK lib/vhost. A TOCTOU double-fetch of control-queue descriptors allows a heap buffer overflow with attacker-controlled content in the VDUSE control-queue handler.

CVE-2026-100236 Alta · 8.6 CWE-787 14/10/2026

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.

CVE-2026-93683 Média · 6.4 CWE-367 14/10/2026

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.

CVE-2026-86561 Média · 6.5 CWE-770 14/10/2026

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.

CVE-2026-109968 Média · 5.5 CWE-532 14/10/2026

Clevis: clevis: pkcs#11 luks passphrase logged in plaintext to world-readable file

A flaw was found in the clevis PKCS#11 pin. The clevis-pkcs11-afunix-socket-unlock daemon logs LUKS disk encryption passphrases in plaintext to a log file. The log file is created without restrictive permissions, making it world-readable under the default process umask. A local attacker can read the log file to obtain the LUKS passphrase.

CVE-2026-100229 Média · 6.5 CWE-787 14/10/2026

Gstreamer1-plugins-bad-free: gstreamer1-plugins-bad-free: out-of-bounds write in gst_h266_parser_parse_dci() due to off-by-one array bound check

A flaw was found in GStreamer's H.266 codec parser library (libgstcodecparsers). An out-of-bounds write vulnerability exists in the DCI parsing function, where a reserved field value is incorrectly accepted, causing the parser to write beyond the bounds of an internal structure. An attacker could exploit this by providing a specially crafted H.266 bitstream to a third-party application that uses this library API, potentially causing a crash or memory corruption. No standard GStreamer pipeline element currently invokes the affected code path.

CVE-2026-86476 Alta · 8.4 CWE-787 14/10/2026

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.

CVE-2026-109971 Média · 4.7 CWE-214 14/10/2026

Clevis: clevis: pkcs#11 token pin exposed on command line via pkcs11-tool

A flaw was found in the clevis PKCS#11 pin. The clevis-decrypt-pkcs11 script passes the PKCS#11 token PIN as a command-line argument to pkcs11-tool, making it visible to any local user through process listing or the /proc filesystem.

CVE-2026-109970 Média · 4.7 CWE-538 14/10/2026

Clevis: clevis: pkcs#11 token pin written to world-readable file

A flaw was found in the clevis PKCS#11 pin. The clevis-luks-pkcs11-askpin script writes the PKCS#11 token PIN in plaintext to a file without setting restrictive permissions. Under the default process umask, the file is world-readable. Additionally, the PIN file is not reliably cleaned up if the decryption script exits early, leaving the PIN accessible indefinitely.