CVE-2026-67551 Apache Qpid Proton Dotnet: Type size/count handling can lead to excessive allocation pre-authentication

pre-authentication attacker could leverage type size/count handling to cause excessive allocation leading to potential denial of service. This issue affects Apache Qpid Proton-Dotnet: through 1.0.0. Users are recommended to upgrade to version 1.1.0, which fixes the issue...

CVE-2026-67465 Apache Qpid Proton Dotnet: Unbounded symbol value caching can lead to pre-authentication resource exhaustion

A pre-authentication attacker could leverage unbounded symbol value caching to cause resource exhaustion leading to denial of service. This issue affects Apache Qpid Proton-Dotnet: through 1.0.0. Users are recommended to upgrade to version 1.1.0, which fixes the issue...

CVE-2026-67192 Xlight FTP Server < 3.9.5 Pre-Auth Stack Buffer Overflow via SSH GCM Cipher

Xlight FTP Server before 3.9.5 contains a pre-authentication stack buffer overflow vulnerability that allows unauthenticated attackers to corrupt stack memory by sending malformed SSH packets when a GCM cipher is negotiated. Attackers can craft packets with an unvalidated length field passed...

CVE-2026-66033

libssh2 through 1.11.1, fixed in commit a2ed82d, contains a pre-authentication integer underflow vulnerability in the ssh2ciphercrypt function in src/openssl.c that allows a malicious SSH server to crash any connecting client by negotiating AES-GCM ciphers during handshake. Attackers can exploit...

CVE-2026-40140

BeyondTrust Remote Support and Privileged Remote Access are affected by CVE-2026-40140, a pre-authentication vulnerability in the network communication subsystem. The issue stems from insufficient validation of client-supplied input, enabling an unauthenticated remote attacker to trigger a denial...

CVE-2026-40138

A critical pre-authentication vulnerability exists in the authentication subsystem of BeyondTrust Remote Support and Privileged Remote Access. Improper validation of authentication data may allow a network-positioned attacker to bypass access controls and gain unauthorized access to the appliance...

PT-2026-55951

Name of the Vulnerable Software and Affected Versions BeyondTrust Remote Support affected versions not specified Description A critical pre-authentication flaw exists in the authentication subsystem. Improper processing of authentication requests allows an unauthenticated remote attacker to bypas...

PT-2026-55952

BeyondTrust Remote Support and Privileged Remote Access contain a high-severity pre-authentication vulnerability in the network communication subsystem. Insufficient validation of client-supplied input may allow an unauthenticated remote attacker to trigger a denial-of-service condition affecting...

CVE-2026-45689 Rocket.Chat: Pre-Auth NoSQL Injection in OAuth2 Token Endpoint leading to Arbitrary User ATO

Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.0, 8.4.1, 8.3.3, 8.2.3, 8.1.4, 8.0.5, 7.13.7, and 7.10.11, an unauthenticated network attacker obtains a valid Rocket.Chat OAuth access token for an arbitrary user by sending a single HTTP POST with...

CVE-2026-53519 Nezha Monitoring: Pre-auth path traversal via /dashboard.. prefix confusion leaks jwt_secret_key

Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. Prior to version 2.0.13, fallbackToFrontend in the dashboard's NoRoute handler treats any URL whose raw string starts with /dashboard as an admin-frontend asset request. The check uses strings.HasPrefi...

RockyLinux 9 : dovecot (RLSA-2026:19364)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:19364 advisory. dovecot: ManageSieve: Denial of Service via crafted SASL initial response in AUTHENTICATE command CVE-2025-59032 dovecot: denial of service via crafted...

Exploit for CVE-2026-24516

CVE-2026-24516-DigitalOcean-RCE Critical Pre-Auth Root RCE CV...

Exploit for CVE-2026-1731

CVE-2026-1731 BeyondTrust Remote Support Pre-Auth RCE PoC...

EUVD-2026-5559

BeyondTrust Remote Support RS and certain older versions of Privileged Remote Access PRA contain a critical pre-authentication remote code execution vulnerability. By sending specially crafted requests, an unauthenticated remote attacker may be able to execute operating system commands in the...

PT-2026-6803

Name of the Vulnerable Software and Affected Versions BeyondTrust Remote Support versions prior to 25.3.2 BeyondTrust Privileged Remote Access versions prior to 25.1.1 Description A pre-authentication operating system command injection flaw exists in BeyondTrust Remote Support and Privileged Remo...

MedDream PACS Premium downloadZip reflected cross-site scripting (XSS) vulnerability

Talos Vulnerability Report TALOS-2025-2254 MedDream PACS Premium downloadZip reflected cross-site scripting XSS vulnerability January 20, 2026 CVE Number CVE-2025-53516 SUMMARY A reflected cross-site scripting xss vulnerability exists in the downloadZip functionality of MedDream PACS Premium...

EUVD-2024-36639

Malicious code in bioql PyPI...

EUVD-2022-50887

Malicious code in bioql PyPI...

EUVD-2024-42523

Malicious code in bioql PyPI...

GHSA-6V93-FRF9-2RP8 Liferay Portal and Liferay DXP vulnerable to Server-Side Request Forgery

Liferay Portal 7.4.0 through 7.4.3.132, and Liferay DXP 2025.Q1.0 through 2025.Q1.4, 2024.Q4.0 through 2024.Q4.7, 2024.Q3.1 through 2024.Q3.13, 2024.Q2.0 through 2024.Q2.13, 2024.Q1.1 through 2024.Q1.15, and 7.4 GA through update 92 allow a pre-authentication blind SSRF vulnerability in the...