CVE-2026-5680 Undertow-core: undertow: denial of service via websocket permessage-deflate processing

A flaw was found in Undertow. A remote attacker could exploit this vulnerability by sending specially crafted WebSocket messages with permessage-deflate negotiated. This could lead to excessive memory consumption due to the PerMessageDeflateFunction.largerBuffer method using exponential doubling,...

CVE-2026-5680

A flaw was found in Undertow. A remote attacker could exploit this vulnerability by sending specially crafted WebSocket messages with permessage-deflate negotiated. This could lead to excessive memory consumption due to the PerMessageDeflateFunction.largerBuffer method using exponential doubling,...

EUVD-2026-67086

A flaw was found in Undertow. A remote attacker could exploit this vulnerability by sending specially crafted WebSocket messages with permessage-deflate negotiated. This could lead to excessive memory consumption due to the PerMessageDeflateFunction.largerBuffer method using exponential doubling,...

CVE-2026-5680

A flaw was found in Undertow. A remote attacker could exploit this vulnerability by sending specially crafted WebSocket messages with permessage-deflate negotiated. This could lead to excessive memory consumption due to the PerMessageDeflateFunction.largerBuffer method using exponential doubling,...

PT-2026-82541

Name of the Vulnerable Software and Affected Versions Undertow affected versions not specified Description A flaw exists where a remote attacker can cause a Denial of Service DoS by sending specially crafted WebSocket messages with permessage-deflate negotiated. This leads to excessive memory...

CVE-2026-5680: Allocation of Resources Without Limits or Throttling

A flaw was found in Undertow. A remote attacker could exploit this vulnerability by sending specially crafted WebSocket messages with permessage-deflate negotiated. This could lead to excessive memory consumption due to the PerMessageDeflateFunction.largerBuffer method using exponential doubling,...

Linux Distros Unpatched Vulnerability : CVE-2026-5680

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in Undertow. A remote attacker could exploit this vulnerability by sending specially crafted WebSocket messages with permessage-deflate...

BIT-KEYCLOAK-2026-2575 Keycloak: keycloak: denial of service due to excessive samlrequest decompression

A flaw was found in Keycloak. An unauthenticated remote attacker can trigger an application level Denial of Service DoS by sending a highly compressed SAMLRequest through the SAML Redirect Binding. The server fails to enforce size limits during DEFLATE decompression, leading to an OutOfMemoryErro...

CVE-2026-53524

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 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 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...

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 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...

CVE-2026-53524: Improper Handling of Highly Compressed Data (Data Amplification)

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-2026-54464

A flaw was found in the websocket-driver library. When used with the permessage-deflate extension, a remote attacker can send compressed WebSocket messages that, upon decompression, exceed the configured maximum message size. This occurs because the size limit is checked against the compressed da...

[SECURITY] [DLA 4748-1] python-httplib2 security update

Debian LTS Advisory DLA-4748-1 [email protected] https://www.debian.org/lts/security/ Emmanuel Arias August 20, 2026 https://wiki.debian.org/LTS Package : python-httplib2 Version : 0.20.4-3+deb12u1 CVE ID : CVE-2026-59939 A flaw was discovered in python-httplib2, a comprehensive Python...

EUVD-2026-62947

In versions below 3.8.5 of the Phantom app for Splunk SOAR, a user who holds a role with permission to run actions could expose a sensitive archive password by invoking the deflate item action, because the action's password parameter is not masked and is shown in cleartext in the user interface...

Debian dla-4748 : python3-httplib2 - security update

The remote Debian 12 host has a package installed that is affected by a vulnerability as referenced in the dla-4748 advisory. ------------------------------------------------------------------------- Debian LTS Advisory DLA-4748-1 [email protected] https://www.debian.org/lts/security/...