CVE-2026-23086 vsock/virtio: cap TX credit to local buffer size

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: cap TX credit to local buffer size The virtio transports derives its TX credit directly from peerbufalloc, which is set from the remote endpoint's SOVMSOCKETSBUFFERSIZE value. On the host side this means that the...

CVE-2026-23069

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: fix potential underflow in virtiotransportgetcredit The credit calculation in virtiotransportgetcredit uses unsigned arithmetic: ret = vvs-peerbufalloc - vvs-txcnt - vvs-peerfwdcnt; If the peer shrinks its advertise...

CVE-2026-23069 vsock/virtio: fix potential underflow in virtio_transport_get_credit()

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: fix potential underflow in virtiotransportgetcredit The credit calculation in virtiotransportgetcredit uses unsigned arithmetic: ret = vvs-peerbufalloc - vvs-txcnt - vvs-peerfwdcnt; If the peer shrinks its advertise...

CVE-2026-23069

CVE-2026-23069 (Linux kernel) : In vsock/virtio, the credit calculation in virtio_transport_get_credit() can underflow when the peer’s advertised buffer (peer_buf_alloc) shrinks while data is in flight, potentially allowing more data to be queued than the peer can handle. The issue arises from un...

CVE-2026-23069 vsock/virtio: fix potential underflow in virtio_transport_get_credit()

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: fix potential underflow in virtiotransportgetcredit The credit calculation in virtiotransportgetcredit uses unsigned arithmetic: ret = vvs-peerbufalloc - vvs-txcnt - vvs-peerfwdcnt; If the peer shrinks its advertise...

CVE-2026-23069 vsock/virtio: fix potential underflow in virtio_transport_get_credit()

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: fix potential underflow in virtiotransportgetcredit The credit calculation in virtiotransportgetcredit uses unsigned arithmetic: ret = vvs-peerbufalloc - vvs-txcnt - vvs-peerfwdcnt; If the peer shrinks its advertise...

CVE-2026-23057

The CVE-2026-23057 issue in the Linux kernel is that vsock/virtio attempts to coalesce two skbs in the RX path when a linear skb with spare tail room is followed by a small skb (

CVE-2026-23057 vsock/virtio: Coalesce only linear skb

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: Coalesce only linear skb vsock/virtio common tries to coalesce buffers in rx queue: if a linear skb with a spare tail room is followed by a small skb length limited by GOODCOPYLEN = 128, an attempt is made to join...

CVE-2026-23057

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: Coalesce only linear skb vsock/virtio common tries to coalesce buffers in rx queue: if a linear skb with a spare tail room is followed by a small skb length limited by GOODCOPYLEN = 128, an attempt is made to join...

DEBIAN-CVE-2026-1642

A vulnerability exists in NGINX OSS and NGINX Plus when configured to proxy to upstream Transport Layer Security TLS servers. An attacker with a man-in-the-middle MITM position on the upstream server side—along with conditions beyond the attacker's control—may be able to inject plain text data in...

ALPINE-CVE-2026-1642

A vulnerability exists in NGINX OSS and NGINX Plus when configured to proxy to upstream Transport Layer Security TLS servers. An attacker with a man-in-the-middle MITM position on the upstream server side—along with conditions beyond the attacker's control—may be able to inject plain text data in...

AZL-76706 CVE-2026-1642 affecting package nginx for versions less than 1.28.2-1

A vulnerability exists in NGINX OSS and NGINX Plus when configured to proxy to upstream Transport Layer Security TLS servers. An attacker with a man-in-the-middle MITM position on the upstream server side—along with conditions beyond the attacker's control—may be able to inject plain text data in...

CVE-2026-1642

A vulnerability exists in NGINX OSS and NGINX Plus when configured to proxy to upstream Transport Layer Security TLS servers. An attacker with a man-in-the-middle MITM position on the upstream server side—along with conditions beyond the attacker's control—may be able to inject plain text data in...

AZL-76745 CVE-2026-1642 affecting package nginx for versions less than 1.22.1-15

A vulnerability exists in NGINX OSS and NGINX Plus when configured to proxy to upstream Transport Layer Security TLS servers. An attacker with a man-in-the-middle MITM position on the upstream server side—along with conditions beyond the attacker's control—may be able to inject plain text data in...

CVE-2026-1642

A vulnerability exists in NGINX OSS and NGINX Plus when configured to proxy to upstream Transport Layer Security TLS servers. An attacker with a man-in-the-middle MITM position on the upstream server side—along with conditions beyond the attacker's control—may be able to inject plain text data in...

UBUNTU-CVE-2026-1642

A vulnerability exists in NGINX OSS and NGINX Plus when configured to proxy to upstream Transport Layer Security TLS servers. An attacker with a man-in-the-middle MITM position on the upstream server side—along with conditions beyond the attacker's control—may be able to inject plain text data in...

CVE-2026-1642

A vulnerability exists in NGINX OSS and NGINX Plus when configured to proxy to upstream Transport Layer Security TLS servers. An attacker with a man-in-the-middle MITM position on the upstream server side—along with conditions beyond the attacker's control—may be able to inject plain text data in...

PT-2026-6299

Name of the Vulnerable Software and Affected Versions Espressif Internet of Things IOT Development Framework versions 5.1.6 through 5.5.2 Description The Espressif Internet of Things IOT Development Framework contains a use-after-free issue in the BLE provisioning transport protocomm ble layer...

APT28’s Stealthy Multi-Stage Campaign Leveraging CVE‑2026‑21509 and Cloud C2 Infrastructure

APT28’s Stealthy Multi-Stage Campaign Leveraging CVE‑2026‑21509 and Cloud C2 Infrastructure By Pham Duy Phuc and Alex Lanstein · February 4, 2026 Updated February 9, 2026: This analysis has been updated to clarify malware naming conventions. Introduction Russian state-sponsored threat group APT28...

PT-2026-6350

Summary Cross-client response data leak when a single McpServer/Server and transport instance is reused across multiple client connections, most commonly in stateless StreamableHTTPServerTransport deployments. Impact Who is affected: Any MCP server deployment using the TypeScript SDK where a sing...