CVE-2026-42221 nginx-ui: Unauthenticated First-Run Installer Allows Remote Initial Admin Claim

Nginx UI is a web user interface for the Nginx web server. From version 2.0.0 to before version 2.3.8, an unauthenticated network attacker can claim the initial administrator account on a fresh nginx-ui instance during the first-run setup window. The public /api/install endpoint is reachable...

CVE-2026-42221 nginx-ui: Unauthenticated First-Run Installer Allows Remote Initial Admin Claim

Nginx UI is a web user interface for the Nginx web server. From version 2.0.0 to before version 2.3.8, an unauthenticated network attacker can claim the initial administrator account on a fresh nginx-ui instance during the first-run setup window. The public /api/install endpoint is reachable...

CVE-2026-42221

Summary: CVE-2026-42221 affects nginx-ui versions 2.0.0 through 2.3.7, where an unauthenticated attacker can claim the initial administrator account during first-run via the public /api/install endpoint. The installation flow and public keys are not authenticated, allowing an attacker to set admi...

CVE-2026-42221

Nginx UI is a web user interface for the Nginx web server. From version 2.0.0 to before version 2.3.8, an unauthenticated network attacker can claim the initial administrator account on a fresh nginx-ui instance during the first-run setup window. The public /api/install endpoint is reachable...

Phishing Campaign Hits 80+ Orgs Using SimpleHelp and ScreenConnect RMM Tools

An active phishing campaign has been observed targeting multiple vectors since at least April 2025 with legitimate Remote Monitoring and Management RMM software as a way to establish persistent remote access to compromised hosts. The activity, codenamed VENOMOUSHELPER , has impacted over 80...

dovecot: ManageSieve: Denial of Service via crafted SASL initial response in AUTHENTICATE command

A flaw was found in ManageSieve. A remote attacker can exploit this vulnerability by sending a crafted SASL Simple Authentication and Security Layer initial response during the AUTHENTICATE command. This can cause the ManageSieve service to crash repeatedly, leading to a Denial of Service DoS for...

SUSE-SU-2026:21444-1 Security update for kernel-livepatch-MICRO-6-0-RT_Update_20

This update for kernel-livepatch-MICRO-6-0-RTUpdate20 fixes the following issues: This is the initial kernel RT livepatch for update 20...

SUSE-SU-2026:21456-1 Security update for kernel-livepatch-MICRO-6-0_Update_19

This update for kernel-livepatch-MICRO-6-0Update19 fixes the following issues: This is the initial livepatch for Update 19...

SUSE-SU-2026:21441-1 Security update for kernel-livepatch-MICRO-6-0_Update_19

This update for kernel-livepatch-MICRO-6-0Update19 fixes the following issues: This is the initial livepatch for Update 19...

Out-of-bounds Read

Overview Affected versions of this package are vulnerable to Out-of-bounds Read via the IGES and STEP file parsing process. An attacker can cause a denial of service or access unintended memory contents by submitting specially crafted IGES or STEP files that trigger out-of-bounds reads or infinit...

PT-2026-36494

Name of the Vulnerable Software and Affected Versions Open CASCADE Technology OCCT version V8 0 0 rc5 Description Multiple issues exist in the IGES and STEP file parsers that can be triggered by crafted files. These include an out-of-bounds read reading data outside the intended boundary of a...

connection reuse ignores TLS requirement

A vulnerability exists where a connection requiring TLS incorrectly reuses an existing unencrypted connection from the same connection pool. If an initial transfer is made in clear-text via IMAP, SMTP, or POP3, a subsequent request to that same host bypasses the TLS requirement and instead transm...

PT-2026-35891

Name of the Vulnerable Software and Affected Versions curl affected versions not specified Description A flaw exists where a connection requiring TLS incorrectly reuses an existing unencrypted connection from the same connection pool. If an initial transfer is performed in clear-text via IMAP,...

OESA-2026-2028 libsoup security update

libsoup is an HTTP client/server library for GNOME. It uses GObjects and the glib main loop, to integrate well with GNOME applications, and also has a synchronous API, for use in threaded applications. Security Fixes: A flaw was found in libsoup. When establishing HTTPS tunnels through a configur...

SUSE SLES15 : Security update for the Linux Kernel (SUSE-SU-2026:1563-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1563-1 advisory. The SUSE Linux Enterprise 15 SP4 kernel was updated to fix various security issues The following security issues were fixed: -...

CVE-2026-35357

The cp utility in uutils coreutils is vulnerable to an information disclosure race condition. Destination files are initially created with umask-derived permissions e.g., 0644 before being restricted to their final mode e.g., 0600 later in the process. A local attacker can race to open the file...

IR Trends Q1 2026: Phishing reemerges as top initial access vector, as attacks targeting public administration persist

Phishing reemerged as the most observed means of gaining initial access, accounting for over a third of the engagements where initial access could be determined. Phishing has not been the top vector for initial access since Q2 2025. Public administration and health care tied as the most targeted...

Phishing and MFA exploitation: Targeting the keys to the kingdom

In 2025, attackers increasingly targeted weaknesses in multi-factor authentication MFA workflows, and phishing attacks leveraged valid, compromised credentials to launch lures from trusted accounts. The trends focused entirely on trust, or the lack thereof, in everyday business operations. Phishi...

No Exploit Needed: How Attackers Walk Through the Front Door via Identity-Based Attacks

The cybersecurity industry has spent the last several years chasing sophisticated threats like zero-days, supply chain compromises, and AI-generated exploits. However, the most reliable entry point for attackers still hasn't changed: stolen credentials. Identity-based attacks remain a dominant...

Improper Input Validation

Overview Affected versions of this package are vulnerable to Improper Input Validation of certain client metadata fields when explicitly enabled. An attacker possessing a valid Initial Access Token can dynamically register a malicious client with crafted metadata. Depending on the metadata provid...