CVE-2026-4671

justhtml (Python HTML sanitizer library) versions before 1.18.0 contain multiple denial-of-service vulnerabilities in CSS selector handling and linkification . Attacker-controlled selector strings passed to query(), matches(), or selector-based transforms, or linkification over untrusted text, ca...

CVE-2026-74713

In the Linux kernel, the following vulnerability has been resolved: vhostiotlb: bound map allocation in addrange vhostiotlbaddrangectx only retires an old entry when the table has a non-zero limit, has exactly reached that limit and has VHOSTIOTLBFLAGRETIRE set. Non-retiring tables can keep...

CVE-2026-74692

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix TOCTOU race between smclistenout and listener close smclistenout reads lsmc-sk.skstate without the listener lock, then acquires locksocknested only after the check passes. This opens a window where smccloseactive can...

EUVD-2026-64400

In the Linux kernel, the following vulnerability has been resolved: vhostiotlb: bound map allocation in addrange vhostiotlbaddrangectx only retires an old entry when the table has a non-zero limit, has exactly reached that limit and has VHOSTIOTLBFLAGRETIRE set. Non-retiring tables can keep...

CVE-2026-74713

CVE-2026-74713 affects the Linux kernel vhost_iotlb subsystem. The root cause is that vhost_iotlb_add_range_ctx() only retires an old entry when the table has a non-zero limit, has exactly reached that limit, and has VHOST_IOTLB_FLAG_RETIRE set. Non-retiring tables can keep allocating entries aft...

EUVD-2026-64379

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix TOCTOU race between smclistenout and listener close smclistenout reads lsmc-sk.skstate without the listener lock, then acquires locksocknested only after the check passes. This opens a window where smccloseactive can...

CVE-2026-74692 net/smc: fix TOCTOU race between smc_listen_out() and listener close

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix TOCTOU race between smclistenout and listener close smclistenout reads lsmc-sk.skstate without the listener lock, then acquires locksocknested only after the check passes. This opens a window where smccloseactive can...

CVE-2026-74621

CVE-2026-74621 is an unbounded memory leak in the Linux kernel's net/sched: act_ct (traffic control connection tracking action). When tcf_ct_handle_fragments() rejects a packet due to failed header sanity checks (e.g., -EINVAL, -ENOMEM, -EPROTO), the sk_buff is not freed or queued, yet tcf_ct_act...

CVE-2026-74621 net/sched: act_ct: fix sk_buff leak when the header checks reject a packet

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix skbuff leak when the header checks reject a packet tcfcthandlefragments runs its header sanity checks before handing anything to the defragmentation engine: if family == NFPROTOIPV4 err =...

PT-2026-79718

In the Linux kernel, the following vulnerability has been resolved: vhost iotlb: bound map allocation in add range vhost iotlb add range ctx only retires an old entry when the table has a non-zero limit, has exactly reached that limit and has VHOST IOTLB FLAG RETIRE set. Non-retiring tables can...

EUVD-2026-64185

WeeChat Wee Enhanced Environment for Chat is a free chat client. In versions 4.3.0 through 4.9.0, the WeeChat relay module's WebSocket permessage-deflate decompression function relaywebsocketinflate has no upper bound on output size. An authenticated relay user can send a small compressed WebSock...

CVE-2026-53524 WeeChat has a Decompression Bomb in Relay WebSocket (DoS)

WeeChat Wee Enhanced Environment for Chat is a free chat client. In versions 4.3.0 through 4.9.0, the WeeChat relay module's WebSocket permessage-deflate decompression function relaywebsocketinflate has no upper bound on output size. An authenticated relay user can send a small compressed WebSock...

CVE-2026-53524

WeeChat versions 4.3.0 through 4.9.0 contain a decompression bomb vulnerability in the relay module's WebSocket permessage-deflate decompression function (relay_websocket_inflate()). The function imposes no upper bound on output size, allowing an authenticated relay user to send a small compresse...

EUVD-2026-64151

kin-openapi is a Go project for handling OpenAPI files. From 0.124.0 until 0.142.0, openapi3filter.sliceMapToSlice in openapi3filter/reqrespdecoder.go converts attacker-controlled sparse indexes from a deepObject query parameter into a dense slice by allocating entries from zero through the large...

CVE-2026-25800

A flaw was found in Quinn, a Rust implementation of the QUIC transport protocol. A remote attacker can exploit this vulnerability by sending specially crafted QUIC stream fragments with many gaps. This can lead to high buffer overhead in the Assembler component, causing memory exhaustion and a...

CVE-2026-55241

Checkmate , an open-source self-hosted server monitoring tool, is vulnerable to a pre-authentication denial of service in versions prior to 3.9.1 . The public POST /api/v1/auth/register endpoint processes multipart profileImage uploads through in-memory Multer parsing before registration or invit...

EUVD-2026-64037

Checkmate is an open-source, self-hosted tool designed to track and monitor server hardware, uptime, response times, and incidents in real-time with beautiful visualizations. Prior to 3.9.1, the public POST /api/v1/auth/register route in server/src/api/routes/authRoutes.ts passes multipart...

CVE-2026-55241 Checkmate: Pre-auth Denial of Service via File Upload on Registration

Checkmate is an open-source, self-hosted tool designed to track and monitor server hardware, uptime, response times, and incidents in real-time with beautiful visualizations. Prior to 3.9.1, the public POST /api/v1/auth/register route in server/src/api/routes/authRoutes.ts passes multipart...

CVE-2026-59279

The MCP Streamable HTTP server transport WebFlux and WebMvc variants does not place any limit on the number of sessions it retains, and by default does not require clients to be authenticated. As a result, a remote attacker can cause the server to accumulate an unbounded number of sessions over...

CVE-2026-59279

Spring AI 2.0.0 is affected by a Denial of Service vulnerability in the MCP Streamable HTTP server transport (both WebFlux and WebMvc variants). The transport does not impose any limit on the number of sessions it retains and, by default, does not require client authentication. A remote unauthent...