CVE-2026-54463

A flaw was found in websocket-driver, a WebSocket protocol handler. A remote attacker could exploit a vulnerability in how draft versions of the WebSocket protocol handle length headers. By sending an indefinite sequence of specially crafted bytes, an attacker can cause the affected component to...

CVE-2026-54466 websocket-driver: Message corruption via abuse of protocol length headers

websocket-driver is a WebSocket protocol handler with pluggable I/O. Prior to 0.7.5, the frame format in draft versions of the WebSocket protocol includes a length header that allows an arbitrarily large integer to be encoded as a sequence of bytes with the high bit set. By sending an indefinite...

CVE-2026-54466 websocket-driver: Message corruption via abuse of protocol length headers

websocket-driver is a WebSocket protocol handler with pluggable I/O. Prior to 0.7.5, the frame format in draft versions of the WebSocket protocol includes a length header that allows an arbitrarily large integer to be encoded as a sequence of bytes with the high bit set. By sending an indefinite...

CVE-2026-54466

The CVE-2026-54466 entry concerns websocket-driver (WebSocket protocol handler). Prior to version 0.7.5, draft75.js parses a length header that can be abused by sending a sequence of bytes (0x80 or higher), causing an ever-growing integer to be produced. Because JavaScript numbers are 64‑bit floa...

CVE-2026-54463

websocket-driver is a WebSocket protocol handler with pluggable I/O. Prior to 0.8.1, draft versions of the WebSocket protocol in websocket-driver include a length header that allows an arbitrarily large integer to be encoded as bytes with the high bit set, and a server or client can send an...

CVE-2026-54463 websocket-driver: Memory exhaustion via abuse of protocol length headers

websocket-driver is a WebSocket protocol handler with pluggable I/O. Prior to 0.8.1, draft versions of the WebSocket protocol in websocket-driver include a length header that allows an arbitrarily large integer to be encoded as bytes with the high bit set, and a server or client can send an...

CVE-2026-54463 websocket-driver: Memory exhaustion via abuse of protocol length headers

websocket-driver is a WebSocket protocol handler with pluggable I/O. Prior to 0.8.1, draft versions of the WebSocket protocol in websocket-driver include a length header that allows an arbitrarily large integer to be encoded as bytes with the high bit set, and a server or client can send an...

CVE-2026-54463

The CVE-2026-54463 issue affects the websocket-driver WebSocket protocol handler (prior to version 0.8.1). The root cause is a length header in draft WebSocket protocol frames that can encode an arbitrarily large integer, allowing a peer to send an indefinite sequence of 0x80+ bytes that are pars...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling through the handling of protocol length headers in draft versions of the WebSocket protocol. An attacker can cause excessive memory consumption by sending a continuous sequence of byt...

Security Bulletin: DataStage on Cloud Pak for Data has several vulnerabilities due to open source software

Summary Open source packages are used as part of the overall processing in DataStage on Cloud Pak for Data. Vulnerability Details CVEID:CVE-2026-33871 DESCRIPTION: Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.132.Final and 4.2.10.Final, a remote...

DEBIAN-CVE-2026-54388

Tinyproxy through 1.11.3, fixed in commit 364cdb6, fails to reject requests containing multiple Content-Length headers with differing values, forwarding all duplicate headers to the backend while using the first value to determine how many request body bytes to consume. Remote attackers can...

CVE-2026-54388 Tinyproxy - HTTP Request Smuggling via Duplicate Content-Length Headers

Tinyproxy through 1.11.3, fixed in commit 364cdb6, fails to reject requests containing multiple Content-Length headers with differing values, forwarding all duplicate headers to the backend while using the first value to determine how many request body bytes to consume. Remote attackers can...

CVE-2026-54388

Tinyproxy through 1.11.3, fixed in commit 364cdb6, fails to reject requests containing multiple Content-Length headers with differing values, forwarding all duplicate headers to the backend while using the first value to determine how many request body bytes to consume. Remote attackers can...

EUVD-2026-37790

Tinyproxy through 1.11.3, fixed in commit 364cdb6, fails to reject requests containing multiple Content-Length headers with differing values, forwarding all duplicate headers to the backend while using the first value to determine how many request body bytes to consume. Remote attackers can...

CVE-2026-53781

Summarize before 0.17.0 contains a resource exhaustion vulnerability that allows remote attackers to cause disk exhaustion by serving media responses that bypass the enforced size limit through missing or misreported Content-Length headers, chunked transfer encoding, or failed HEAD requests...

CVE-2026-39805 CL.CL HTTP request smuggling via duplicate Content-Length in bandit

Inconsistent Interpretation of HTTP Requests vulnerability in mtrudel bandit allows HTTP request smuggling via duplicate Content-Length headers. 'Elixir.Bandit.Headers':getcontentlength/1 in lib/bandit/headers.ex uses List.keyfind/3, which returns only the first matching header. When a request...

CVE-2026-39805 CL.CL HTTP request smuggling via duplicate Content-Length in bandit

Inconsistent Interpretation of HTTP Requests vulnerability in mtrudel bandit allows HTTP request smuggling via duplicate Content-Length headers. 'Elixir.Bandit.Headers':getcontentlength/1 in lib/bandit/headers.ex uses List.keyfind/3, which returns only the first matching header. When a request...

Libsoup: libsoup: http request smuggling via duplicate content-length headers

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CVE-2026-2708

A request smuggling vulnerability exists in libsoup's HTTP/1 header parsing logic. The soupmessageheadersappendcommon function in libsoup/soup-message-headers.c unconditionally appends each header value without validating for duplicate or conflicting Content-Length fields. This allows an attacker...

undici: Undici: HTTP Request Smuggling and Denial of Service due to duplicate Content-Length headers

A flaw was found in undici, a Node.js HTTP/1.1 client. A remote attacker could exploit this vulnerability by sending HTTP/1.1 requests that include duplicate Content-Length headers with different casing e.g., "Content-Length" and "content-length". This can lead to HTTP Request Smuggling, a...