CVE-2026-67445 Mailpit: SMTP command parser buffers unbounded command lines before syntax rejection

Mailpit is an email testing tool and API for developers. Prior to 1.30.4, Mailpit reads SMTP commands through internal/smtpd/smtpd.go session.readLine using bufio.Reader.ReadString before session.parseLine parses the verb or the RFC 5321 512-octet command-line limit is enforced. An unauthenticate...

CVE-2026-63495 Libevent: Unbounded memory accumulation in WebSocket server via fragmented frames

Libevent is an event notification library. From 2.2.0-alpha-dev until 2.2.2-alpha, the libevent WebSocket server in ws.c accumulates fragmented frames in evws-incompleteframes without enforcing a total message-size limit. An unauthenticated remote client can repeatedly send fragmented WebSocket...

GHSA-7M52-JW36-44R3 MCP PHP SDK: client HttpTransport SSE buffer (sseBuffer .= chunk) grows unbounded when server withholds the event delimiter

Summary The HTTP client transport in mcp/sdk reads a Server-Sent-Events SSE response stream incrementally and appends each 4 KiB chunk to an in-memory buffer $this-sseBuffer .= $chunk; with no upper bound. The buffer is only ever flushed when an SSE event delimiter "\n\n" appears. A remote MCP...

Fixed in Apache Tomcat 9.0.121

Low: DoS in WebSocket chat example CVE-2026-66299 The WebSocket chat example provided an unbounded buffer for undelivered messages. A maliciously slow client could cause the buffer to grow continuously, eventually leading to an memory exhaustion and failure of the Tomcat process. This was fixed...

Fixed in Apache Tomcat 10.1.58

Low: DoS in WebSocket chat example CVE-2026-66299 The WebSocket chat example provided an unbounded buffer for undelivered messages. A maliciously slow client could cause the buffer to grow continuously, eventually leading to an memory exhaustion and failure of the Tomcat process. This was fixed...

CVE-2026-55078

Coder allows organizations to provision remote development environments via Terraform. Starting in version 2.17.0 and prior to versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2, POST /api/v2/files converts zip uploads to tar in memory via CreateTarFromZip, which enforced a per-entry size limit but no...

CVE-2026-56810

Allocation of Resources Without Limits or Throttling vulnerability in elixir-mint mint Mint.HTTP1 module allows a denial of service via an oversized chunked transfer-encoded response. This vulnerability is associated with program files lib/mint/http1.ex and program routines...

CVE-2026-56810

CVE-2026-56810 affects mint: a memory-denial vulnerability in Mint.HTTP1.decode_body/5 where chunked HTTP response bodies are buffered in an unbounded data_buffer until the entire declared chunk length completes. The chunk size is parsed with no upper bound, enabling a remote attacker to send an ...

BIT-ACTIVEMQ-2026-53916 Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp: Unbounded header buffer in STOMP NIO codec

Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp. An unauthenticated client that opens a STOMP NIO connection can send header bytes that never terminate which makes the broker buffer them without limit, exhausting the JVM hea...

The vulnerability of the PE-file processing mechanism of the ClamAV antivirus program allows a hacker to induce a service failure.

The vulnerability of the PE-file processing mechanism in the ClamAV antivirus program lies in the copying of buffers without checking the size of the input data. Exploiting this vulnerability allows a malicious actor to cause service failure by sending a specially crafted file...

gun HTTP/1.1 response buffer has no size limit allowing server-controlled memory exhaustion

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CVE-2026-47073

CVE-2026-47073 affects hackney WebSocket client (src/hackney_ws.erl) causing unbounded memory growth via three paths: read_handshake_response/3 accumulates an unbounded buffer due to lack of size cap; parse_payload/9 and parse_active_payload/8 do not enforce a maximum frame payload length; and fr...

Linux Distros Unpatched Vulnerability : CVE-2026-8466

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Allocation of Resources Without Limits or Throttling vulnerability in ninenines cowboy allows denial of service via unbounded buffer accumulation in multipart...

EUVD-2026-30266

Plug: Unbounded buffer accumulation in multipart header parsing causes denial of service...

GHSA-468C-VQ7P-GH64 Plug: Unbounded buffer accumulation in multipart header parsing causes denial of service

Summary An Allocation of Resources Without Limits or Throttling vulnerability in Plug.Conn.readpartheaders/2 allows an unauthenticated attacker to exhaust server memory by sending a crafted multipart/form-data request, causing a denial of service. Details Plug.Conn.readpartheaders/2 in...

Plug: Unbounded buffer accumulation in multipart header parsing causes denial of service

Summary An Allocation of Resources Without Limits or Throttling vulnerability in Plug.Conn.readpartheaders/2 allows an unauthenticated attacker to exhaust server memory by sending a crafted multipart/form-data request, causing a denial of service. Details Plug.Conn.readpartheaders/2 in...

CVE-2026-8468

Allocation of Resources Without Limits or Throttling vulnerability in plugproject plug allows denial of service via unbounded buffer accumulation in multipart header parsing. 'Elixir.Plug.Conn':readpartheaders/2 in lib/plug/conn.ex does not obey its :length parameter. There is no upper bound on t...

EEF-CVE-2026-8468 Unbounded buffer accumulation in multipart header parsing causes denial of service in plug

Summary Allocation of Resources Without Limits or Throttling vulnerability in plug\project plug allows denial of service via unbounded buffer accumulation in multipart header parsing. 'Elixir.Plug.Conn':read\part\headers/2 in lib/plug/conn.ex does not obey its :length parameter. There is no upper...

CVE-2026-8468 Unbounded buffer accumulation in multipart header parsing causes denial of service in plug

Allocation of Resources Without Limits or Throttling vulnerability in plugproject plug allows denial of service via unbounded buffer accumulation in multipart header parsing. 'Elixir.Plug.Conn':readpartheaders/2 in lib/plug/conn.ex does not obey its :length parameter. There is no upper bound on t...

CVE-2026-8468

Summary (facts from sources): CVE-2026-8468 describes an unbounded memory accumulation in multipart header parsing within Elixir Plug (plug_project) andCowboy-derived code. The root cause is in plug_multipart:parse_headers/2 (and read_part_headers/2 in lib/plug/conn.ex) which accumulates incoming...