Undici: Malicious WebSocket 64-bit length overflows parser and crashes the client

Impact A server can reply with a WebSocket frame using the 64-bit length form and an extremely large length. undici's ByteParser overflows internal math, ends up in an invalid state, and throws a fatal TypeError that terminates the process. Patches Patched in the undici version v7.24.0 and v6.24....

GHSA-F269-VFMQ-VJVJ Undici: Malicious WebSocket 64-bit length overflows parser and crashes the client

Impact A server can reply with a WebSocket frame using the 64-bit length form and an extremely large length. undici's ByteParser overflows internal math, ends up in an invalid state, and throws a fatal TypeError that terminates the process. Patches Patched in the undici version v7.24.0 and v6.24....

CVE-2026-29776

An integer underflow flaw has been discovered in FreeRDP. A uint32 field is populated from a uint16 data element. This field is later modified without proper checks and in some situations a program crash may occur. Mitigation Mitigation for this issue is either not available or the currently...

Linux Distros Unpatched Vulnerability : CVE-2026-31853

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to 7.1.2-16 and 6.9.13-41, an overflow on 32-bit systems ca...

OPENSUSE-SU-2026:10326-1 giflib-devel-32bit-5.2.2-3.1 on GA media

These are all security issues fixed in the giflib-devel-32bit-5.2.2-3.1 package on the GA media of openSUSE Tumbleweed...

CVE-2026-1528

ImpactA server can reply with a WebSocket frame using the 64-bit length form and an extremely large length. undici's ByteParser overflows internal math, ends up in an invalid state, and throws a fatal TypeError that terminates the process. Patches Patched in the undici version v7.24.0 and v6.24.0...

CVE-2026-1528 undici is vulnerable to Malicious WebSocket 64-bit length overflows undici parser and crashes the client

ImpactA server can reply with a WebSocket frame using the 64-bit length form and an extremely large length. undici's ByteParser overflows internal math, ends up in an invalid state, and throws a fatal TypeError that terminates the process. Patches Patched in the undici version v7.24.0 and v6.24.0...

Uncaught Exception

Overview undici is an An HTTP/1.1 client, written from scratch for Node.js Affected versions of this package are vulnerable to Uncaught Exception in the ByteParser when handling a specially crafted WebSocket frame with an extremely large 64-bit length. An attacker can cause the process to termina...

Uncaught Exception

Overview org.webjars.npm:undici is an An HTTP/1.1 client, written from scratch for Node.js Affected versions of this package are vulnerable to Uncaught Exception in the ByteParser when handling a specially crafted WebSocket frame with an extremely large 64-bit length. An attacker can cause the...

CVE-2026-1528 undici is vulnerable to Malicious WebSocket 64-bit length overflows undici parser and crashes the client

ImpactA server can reply with a WebSocket frame using the 64-bit length form and an extremely large length. undici's ByteParser overflows internal math, ends up in an invalid state, and throws a fatal TypeError that terminates the process. Patches Patched in the undici version v7.24.0 and v6.24.0...

CVE-2026-1528

ImpactA server can reply with a WebSocket frame using the 64-bit length form and an extremely large length. undici's ByteParser overflows internal math, ends up in an invalid state, and throws a fatal TypeError that terminates the process. Patches Patched in the undici version v7.24.0 and v6.24.0...

Buffer-Overflow-PoC

Buffer Overflow PoC — ret2libc on x86-64 Linux Overview D...

CVE-2026-32240

Cap'n Proto is a data interchange format and capability-based RPC system. Prior to 1.4.0, when using Transfer-Encoding: chunked, if a chunk's size parsed to a value of 2^64 or larger, it would be truncated to a 64-bit integer. In theory, this bug could enable HTTP request/response smuggling. This...

php: heap-based buffer overflow in array_merge()

A flaw was found in PHP. A heap-based buffer overflow occurs in the arraymerge function when the total element count of packed arrays exceeds the 32-bit limit or the internal HTMAXSIZE due to an integer overflow in the precomputation of element counts using the zendhashnumelements function, causi...

CVE-2026-31853

A flaw was found in ImageMagick. An overflow on 32-bit systems in the SFW decoder can lead to a crash when processing extremely large images. This vulnerability could allow an attacker to cause a Denial of Service DoS by providing a specially crafted large image. Mitigation Red Hat is not aware o...

capnproto 环境问题漏洞

Capnproto is an open-source Proto serialization/RPC system—including core tools and C++ libraries. Versions of Capnproto prior to 1.4.0 contained environmental vulnerabilities. These vulnerabilities stemmed from the use of chunked transmission encoding, where the block size parsing values were...

PT-2026-25075

Name of the Vulnerable Software and Affected Versions undici versions prior to 7.24.0 undici versions prior to 6.24.0 Description A server can respond with a WebSocket frame utilizing the 64-bit length format and an excessively large length value. The ByteParser component within undici experience...

undici 安全漏洞

Undici is an open-source HTTP/1.1 client developed by Node.js. There is a security vulnerability in Undici, which stems from ByteParser’s internal mathematical operation overflow when processing WebSocket frames that use 64-bit length formats and have extremely large lengths. This could lead to t...

CVE-2019-25485

R 3.4.4 on Windows x64 contains a buffer overflow vulnerability in the GUI Preferences language menu field that allows local attackers to bypass DEP and ASLR protections. Attackers can inject a crafted payload through the Language for menus preference to trigger a structured exception handler cha...

CVE-2019-25485 R 3.4.4 Windows x64 Buffer Overflow SEH DEP ASLR Bypass

R 3.4.4 on Windows x64 contains a buffer overflow vulnerability in the GUI Preferences language menu field that allows local attackers to bypass DEP and ASLR protections. Attackers can inject a crafted payload through the Language for menus preference to trigger a structured exception handler cha...