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 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-2026-15576

Improper authentication in the agent receiver of Checkmk 2.5.0p10 allows an unauthenticated remote attacker to bypass mutual TLS client certificate verification of relay endpoints by supplying a fixed placeholder identity in the request URL, resulting in limited impact on integrity and...

CVE-2026-15576 Agent receiver accepts mTLS requests without a client certificate

Improper authentication in the agent receiver of Checkmk 2.5.0p10 allows an unauthenticated remote attacker to bypass mutual TLS client certificate verification of relay endpoints by supplying a fixed placeholder identity in the request URL, resulting in limited impact on integrity and...

EUVD-2026-63903

Improper authentication in the agent receiver of Checkmk 2.5.0p10 allows an unauthenticated remote attacker to bypass mutual TLS client certificate verification of relay endpoints by supplying a fixed placeholder identity in the request URL, resulting in limited impact on integrity and...

CVE-2026-15576

CVE-2026-15576 is an improper authentication vulnerability in the agent receiver of Checkmk versions prior to 2.5.0p10 . An unauthenticated remote attacker can bypass mutual TLS (mTLS) client certificate verification on relay endpoints by supplying a fixed placeholder identity in the request URL....

CVE-2026-53525: Observable Timing Discrepancy

WeeChat Wee Enhanced Environment for Chat is a free chat client. In versions 0.3.1 through 4.9.0, the WeeChat relay authentication uses non-constant-time string comparison functions weechatstrcasecmp and strcmp to verify password hashes and plaintext passwords. An attacker can exploit timing...

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...

PT-2026-79357

Name of the Vulnerable Software and Affected Versions Checkmk Cloud versions prior to 2.5.0p10 Checkmk Ultimate versions prior to 2.5.0p10 Checkmk Ultimate MT versions prior to 2.5.0p10 Description Improper authentication in the agent receiver allows an unauthenticated remote attacker to bypass...

DEBIAN-CVE-2026-77641

tor before 0.4.9.9 was prone to a NULL write after free when sending a CONFLUXSWITCH cell fails. The return value of relaysendcommandfromedge was ignored, so a send failure which calls circuitmarkforclose and removes the leg via cfxdelleg would go undetected, causing the caller to write to the...

CVE-2026-77641

tor before 0.4.9.9 was prone to a NULL write after free when sending a CONFLUXSWITCH cell fails. The return value of relaysendcommandfromedge was ignored, so a send failure which calls circuitmarkforclose and removes the leg via cfxdelleg would go undetected, causing the caller to write to the...

WordPress AutoNetTV Relay plugin < 3.0.14 - Unauthenticated Privilege Escalation via Scheduled Sync Cron vulnerability

Unauthenticated Privilege Escalation via Scheduled Sync Cron vulnerability discovered by moonge in WordPress Plugin AutoNetTV Relay versions 3.0.14...

WordPress Estatik Real Estate Plugin plugin < 4.3.4 - Unauthenticated Arbitrary-Recipient Mail Relay via Signed-Value Mismatch vulnerability

Unauthenticated Arbitrary-Recipient Mail Relay via Signed-Value Mismatch vulnerability discovered by Erwan LR WPScan in WordPress Plugin Estatik versions 4.3.4...

PT-2026-79151

tor before 0.4.9.9 was prone to a NULL write after free when sending a CONFLUX SWITCH cell fails. The return value of relay send command from edge was ignored, so a send failure which calls circuit mark for close and removes the leg via cfx del leg would go undetected, causing the caller to write...

CVE-2026-19875

IBM Langflow OSS 1.0.0 through 1.10.0 could allow a remote attacker to overwrite administrator email information and abuse the server as an outbound relay due to missing authentication for the registration endpoint...

CVE-2026-19875 Unauthenticated Registration POST Endpoint Permits Admin Email Overwrite and Outbound Relay Abuse in Langflow

IBM Langflow OSS 1.0.0 through 1.10.0 could allow a remote attacker to overwrite administrator email information and abuse the server as an outbound relay due to missing authentication for the registration endpoint...

CVE-2026-19875 Unauthenticated Registration POST Endpoint Permits Admin Email Overwrite and Outbound Relay Abuse in Langflow

IBM Langflow OSS 1.0.0 through 1.10.0 could allow a remote attacker to overwrite administrator email information and abuse the server as an outbound relay due to missing authentication for the registration endpoint...

EUVD-2026-62606

IBM Langflow OSS 1.0.0 through 1.10.0 could allow a remote attacker to overwrite administrator email information and abuse the server as an outbound relay due to missing authentication for the registration endpoint...

CVE-2026-19875

IBM Langflow OSS versions 1.0.0 through 1.10.0 contain an authentication bypass in the POST /api/v2/registration/ endpoint (CWE-306). An unauthenticated remote attacker can overwrite the server's registered admin email address and trigger outbound telemetry calls, enabling the instance to be abus...