USN-8136-1 dovecot vulnerabilities

It was discovered that Dovecot incorrectly handled invalid base64 SASL data. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 25.10. CVE-2025-59028 It was discovered that Dovecot script decode2text.sh incorrectly handled zip files. An attacke...

Fedora: Security Advisory (FEDORA-2026-b2ec0d8a47)

The remote host is missing an update for the SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

openSUSE 16 Security Update : python-ldap (openSUSE-SU-2026:20421-1)

The remote openSUSE 16 host has a package installed that is affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20421-1 advisory. - CVE-2025-61911: Enforce str for escapefilterchars bsc1251912. - CVE-2025-61912: Escape NULs as per RFC 4514 in escapednchars bsc1251913. Tenab...

SUSE CVE-2026-33419

MinIO is a high-performance object storage system. Prior to RELEASE.2026-03-17T21-25-16Z, MinIO AIStor's STS Security Token Service AssumeRoleWithLDAPIdentity endpoint is vulnerable to LDAP credential brute-forcing due to two combined weaknesses: 1 distinguishable error responses that enable...

Linux Distros Unpatched Vulnerability : CVE-2026-27860

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - If authusernamechars is empty, it is possible to inject arbitrary LDAP filter to Dovecot's LDAP authentication. This leads to potentially bypassing restrictions...

Security update for python-ldap (moderate)

openSUSE security update: security update for python-ldap ------------------------------------------------------------- Announcement ID: openSUSE-SU-2026:20421-1 Rating: moderate References: bsc1251912 bsc1251913 Cross-References: CVE-2025-61911 CVE-2025-61912 CVSS scores: CVE-2025-61911 SUSE : 6...

ALPINE-CVE-2026-27860

If authusernamechars is empty, it is possible to inject arbitrary LDAP filter to Dovecot's LDAP authentication. This leads to potentially bypassing restrictions and allows probing of LDAP structure. Do not clear out authusernamechars, or install fixed version. No publicly available exploits are...

CVE-2026-27860

If authusernamechars is empty, it is possible to inject arbitrary LDAP filter to Dovecot's LDAP authentication. This leads to potentially bypassing restrictions and allows probing of LDAP structure. Do not clear out authusernamechars, or install fixed version. No publicly available exploits are...

CVE-2026-27860

If authusernamechars is empty, it is possible to inject arbitrary LDAP filter to Dovecot's LDAP authentication. This leads to potentially bypassing restrictions and allows probing of LDAP structure. Do not clear out authusernamechars, or install fixed version. No publicly available exploits are...

BIT-MINIO-2026-33419 MinIO: LDAP login brute-force via user enumeration and missing rate limit

MinIO is a high-performance object storage system. Prior to 2026.03.17, MinIO AIStor's STS Security Token Service AssumeRoleWithLDAPIdentity endpoint is vulnerable to LDAP credential brute-forcing due to two combined weaknesses: 1 distinguishable error responses that enable username enumeration,...

CVE-2026-27860

If authusernamechars is empty, it is possible to inject arbitrary LDAP filter to Dovecot's LDAP authentication. This leads to potentially bypassing restrictions and allows probing of LDAP structure. Do not clear out authusernamechars, or install fixed version. No publicly available exploits are...

CVE-2026-33665

n8n is an open source workflow automation platform. Prior to versions 2.4.0 and 1.121.0, when LDAP authentication is enabled, n8n automatically linked an LDAP identity to an existing local account if the LDAP email attribute matched the local account's email. An authenticated LDAP user who could...

n8n Vulnerable to LDAP Filter Injection in LDAP Node

Impact A flaw in the LDAP node's filter escape logic allowed LDAP metacharacters to pass through unescaped when user-controlled input was interpolated into LDAP search filters. In workflows where external user input is passed via expressions into the LDAP node's search parameters, an attacker cou...

CVE-2026-4045

A flaw has been found in projectsend up to r1945. This impacts an unknown function of the file includes/Classes/Auth.php. Executing a manipulation of the argument ldapemail can lead to observable response discrepancy. The attack can be executed remotely. A high complexity level is associated with...

Improper Authorization

Overview Affected versions of this package are vulnerable to Improper Authorization in the authentication process. An attacker can maintain unauthorized access to resources by using valid API tokens, CalDAV credentials, or OpenID Connect authentication even after the account has been disabled or...

User Impersonation

Overview @n8n/rest-api-client is a This package contains the REST API calls for n8n. Affected versions of this package are vulnerable to User Impersonation in the account linking when LDAP authentication is enabled. An attacker can gain unauthorized access to another user's account, including...

n8n: LDAP Email-Based Account Linking Allows Privilege Escalation and Account Takeover

Impact When LDAP authentication is enabled, n8n automatically linked an LDAP identity to an existing local account if the LDAP email attribute matched the local account's email. An authenticated LDAP user who could control their own LDAP email attribute could set it to match another user's email ...

CVE-2026-33751

n8n is an open source workflow automation platform. Prior to versions 1.123.27, 2.13.3, and 2.14.1, a flaw in the LDAP node's filter escape logic allowed LDAP metacharacters to pass through unescaped when user-controlled input was interpolated into LDAP search filters. In workflows where external...

CVE-2026-33751

The CVE-2026-33751 vulnerability affects n8n's LDAP node where filter escape logic fails to escape metacharacters when user-controlled input is interpolated into LDAP search filters. This can allow manipulation of the LDAP search filter, potentially exposing unintended records or bypassing authen...

CVE-2026-33751

n8n is an open source workflow automation platform. Prior to versions 1.123.27, 2.13.3, and 2.14.1, a flaw in the LDAP node's filter escape logic allowed LDAP metacharacters to pass through unescaped when user-controlled input was interpolated into LDAP search filters. In workflows where external...