CVE-2026-103251 n8n before 1.123.80, 2.39.6, and 2.40.1 Package Install Validation Bypass via PubSub

n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 contain a validation bypass vulnerability in the community package installation handler for queue mode deployments. Attackers with Redis write access can bypass name validation, permission checks, checksum...

BIT-RABBITMQ-2026-67421 RabbitMQ: Stored HTML Injection in RabbitMQ Management OAuth Error Handling

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.19, 4.0.24, 4.1.15, 4.2.10, and 4.3.5, RabbitMQ Management rendered an AMQP authorization-error reason containing an attacker-controlled queue name as HTML when the OAuth management UI was enabled. Exploitation requires an...

BIT-RABBITMQ-2026-67240 RabbitMQ: ReDoS via AMQP 1.0 SQL filter LIKE wildcard

RabbitMQ is a messaging and streaming broker. Prior to versions 4.2.7 and 4.3.1, patterntoregex maps % - .? and - ., then compiles ^...$ with only unicode; re:run is called with only capture, none - no explicit matchlimit. A pattern like %%...%X becomes ^.?..?.....?.X$ with overlapping lazy...

BIT-RABBITMQ-2026-66076 RabbitMQ: Cross-vhost quorum-queue status and stream tracking disclosure

RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.0, isauthorized/2 calls rabbitmgmtutil:isauthorized/2, which checks only the management tag, instead of isauthorizedvhost/2. The /api/queues/quorum/:vhost/:queue/status handler reads the vhost...

BIT-DISCOURSE-2026-84302 Discourse: Non-participant moderators can read, edit, and delete PM content through Discourse AI reviewables

Discourse is an open-source discussion platform. Prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, Discourse AI reviewables associated with private messages could appear in the moderator review queue of a moderator who was not a participant in the message. Reviewable visibility filtering did n...

CentOS Linux 8 [TuxCare] Security Update: cups / cups-client / cups-devel / cups-filesystem / cups-ipptool / etc (CENTOS-STREAM8:CLSA-2026:1777392623)

The CentOS Linux 8 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS- STREAM8:CLSA-2026:1777392623 advisory. - OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, in a...

Rocky Linux 8 [CIQ] Security Update: cups / cups-client / cups-client-debuginfo / cups-debuginfo / etc (crlsa-2026_36733)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202636733 advisory. cups: OpenPrinting CUPS: Shared PostScript queue lets anonymous Print-Job requests reach lp code execution over the network CVE-2026-34980 Tenable has extracted th...

Rocky Linux 10.2 [CIQ] Security Update: libnghttp2 / libnghttp2-debuginfo / libnghttp2-devel / nghttp2 / etc (crlsa-2026_54650)

The Rocky Linux 10.2 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202654650 advisory. nghttp2: nghttp2: HTTP Request/Response Smuggling and Response-Queue Poisoning via ambiguous HTTP/1.1 Upgrade requests CVE-2026-58055 Tenable has extracted the...

CentOS Linux 6 [TuxCare] Security Update: cups / cups-devel / cups-libs / cups-lpd / cups-php (CENTOS6:CLSA-2026:1777541087)

The CentOS Linux 6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS6:CLSA-2026:1777541087 advisory. - OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, in a...

Rocky Linux 8 [CIQ] Security Update: libnghttp2 / libnghttp2-debuginfo / libnghttp2-devel / nghttp2 / etc (crlsa-2026_55804)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202655804 advisory. nghttp2: nghttp2: HTTP Request/Response Smuggling and Response-Queue Poisoning via ambiguous HTTP/1.1 Upgrade requests CVE-2026-58055 Tenable has extracted the...

Rocky Linux 10.2 [CIQ] Security Update: cups / cups-client / cups-client-debuginfo / cups-debuginfo / etc (crlsa-2026_39302)

The Rocky Linux 10.2 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202639302 advisory. cups: OpenPrinting CUPS: Shared PostScript queue lets anonymous Print-Job requests reach lp code execution over the network CVE-2026-34980 Tenable has extracted...

Rocky Linux 9 [CIQ] Security Update: libnghttp2 / libnghttp2-debuginfo / libnghttp2-devel / nghttp2 / etc (crlsa-2026_54662)

The Rocky Linux 9 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202654662 advisory. nghttp2: nghttp2: HTTP Request/Response Smuggling and Response-Queue Poisoning via ambiguous HTTP/1.1 Upgrade requests CVE-2026-58055 Tenable has extracted the...

Rocky Linux 9 [CIQ] Security Update: cups / cups-client / cups-client-debuginfo / cups-debuginfo / etc (crlsa-2026_39316)

The Rocky Linux 9 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202639316 advisory. cups: OpenPrinting CUPS: Shared PostScript queue lets anonymous Print-Job requests reach lp code execution over the network CVE-2026-34980 Tenable has extracted th...

CentOS Linux 8.4 [TuxCare] Security Update: cups / cups-client / cups-devel / cups-filesystem / cups-ipptool / etc (CENTOS8.4:CLSA-2026:1777392877)

The CentOS Linux 8.4 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS8.4:CLSA-2026:1777392877 advisory. - OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, in a...

AlmaLinux 9.6 [TuxCare] Security Update: nodejs / nodejs-devel / nodejs-docs / nodejs-full-i18n / etc (ALMALINUX9.6:CLSA-2026:1784113246)

The AlmaLinux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1784113246 advisory. - Impact: Undici's HTTP/1.1 client is vulnerable to response queue poisoning on reused keep-alive sockets. An attacker-controlled upstream...

CVE-2026-103251: Missing Authorization

n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 contain a validation bypass vulnerability in the community package installation handler for queue mode deployments. Attackers with Redis write access can bypass name validation, permission checks, checksum...

Rocky Linux 9.6 [TuxCare] Security Update: exim / exim-greylist / exim-mon / exim-mysql / exim-pgsql Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1787315165)

The Rocky Linux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1787315165 advisory. - Exim before 4.99.5 allows directory traversal to access files outside of the spool area, and consequently gain privileges, becau...

CVE-2026-34990

CVE-2026-34990 - Escalada de privilegios local en CUPS Escalada de privilegios local contra CUPS = 2.4.16 ejecutándose como root. Filtra el token de autenticación Local de cupsd y luego escribe un fragmento de sudoers NOPASSWD como root mediante una cola de impresión file://. Uso python3 poc.py S...

CVE-2026-102108

An authenticated administrator of Kiteworks Email Protection Gateway could submit a crafted serialized object to a cluster management interface that was deserialized without sufficient validation, potentially allowing arbitrary code execution in the context of the gateway service account...

CVE-2026-102108 Kiteworks Email Protection Gateway deserialization of untrusted data

An authenticated administrator of Kiteworks Email Protection Gateway could submit a crafted serialized object to a cluster management interface that was deserialized without sufficient validation, potentially allowing arbitrary code execution in the context of the gateway service account...