Theme Negotiation by Rules - Moderately critical - Cross-site request forgery - SA-CONTRIB-2026-012

This module allows site builders to create so-called "themerule" config entities. These theme rules can render pages with different themes than the default when certain conditions match. The module uses simple GET request to disable or enable theme rules, which allows attackers to disable or enab...

Cisco Nexus 3550-F Switches ACL Programming Bypass (cisco-sa-3550-acl-bypass-mhskZc2q)

According to its self-reported version, Cisco Nexus 3550-F is affected by a vulnerability. - A vulnerability in the access control list ACL programming of Cisco Nexus 3550-F Switches could allow an unauthenticated, remote attacker to send traffic that should be blocked to the management interface...

CVE-2026-21863

A flaw was found in Valkey, a distributed key-value database. A malicious actor with access to the Valkey clusterbus port can exploit an input validation vulnerability by sending a specially crafted invalid clusterbus packet. This lack of validation for clusterbus ping extension packets can lead ...

PT-2026-21591

Name of the Vulnerable Software and Affected Versions free5GC SMF versions up to and including 1.4.1 Description free5GC SMF provides the Session Management Function for free5GC, an open-source project for 5G mobile core networks. The software experiences a panic and terminates when processing a...

[SECURITY] [DLA 4488-1] modsecurity-crs security update

Debian LTS Advisory DLA-4488-1 [email protected] https://www.debian.org/lts/security/ Tobias Frost February 22, 2026 https://wiki.debian.org/LTS Package : modsecurity-crs Version : 3.3.4-1deb11u2 CVE ID : CVE-2023-38199 CVE-2026-21876 Debian Bug : 1041109 1125084 Multiple issues have be...

NULL Pointer Dereference

Overview Affected versions of this package are vulnerable to NULL Pointer Dereference in the checkandmergespecialrules function. An attacker can cause a denial of service by triggering a null pointer dereference through local access. Remediation A fix was pushed into the master branch but not yet...

CVE-2026-2903

A flaw has been found in skvadrik re2c up to 4.4. Impacted is the function checkandmergespecialrules of the file src/parse/ast.cc. This manipulation causes null pointer dereference. The attack can only be executed locally. The exploit has been published and may be used. Patch name:...

AZL-78270 CVE-2026-2903 affecting package re2c 2.0-1

A flaw has been found in skvadrik re2c up to 4.4. Impacted is the function checkandmergespecialrules of the file src/parse/ast.cc. This manipulation causes null pointer dereference. The attack can only be executed locally. The exploit has been published and may be used. Patch name:...

AZL-78273 CVE-2026-2903 affecting package re2c 3.1-4

A flaw has been found in skvadrik re2c up to 4.4. Impacted is the function checkandmergespecialrules of the file src/parse/ast.cc. This manipulation causes null pointer dereference. The attack can only be executed locally. The exploit has been published and may be used. Patch name:...

CVE-2026-2903

A flaw has been found in skvadrik re2c up to 4.4. Impacted is the function checkandmergespecialrules of the file src/parse/ast.cc. This manipulation causes null pointer dereference. The attack can only be executed locally. The exploit has been published and may be used. Patch name:...

CVE-2026-2903

CVE-2026-2903 affects skvadrik/re2c up to 4.4. The vulnerability is in the function check_and_merge_special_rules (src/parse/ast.cc), where the flaw allows a local null pointer dereference. An exploit has been published and may be used. A patch is available (patch name: febeb977936f9519a25d9fbd10...

CVE-2026-2903 skvadrik re2c ast.cc check_and_merge_special_rules null pointer dereference

A flaw has been found in skvadrik re2c up to 4.4. Impacted is the function checkandmergespecialrules of the file src/parse/ast.cc. This manipulation causes null pointer dereference. The attack can only be executed locally. The exploit has been published and may be used. Patch name:...

Debian dla-4488 : modsecurity-crs - security update

The remote Debian 11 host has a package installed that is affected by multiple vulnerabilities as referenced in the dla-4488 advisory. ------------------------------------------------------------------------- Debian LTS Advisory DLA-4488-1 [email protected]...

CVE-2026-27452

ASN.1 TypeScript ESM library, including codecs for Basic Encoding Rules BER and Distinguished Encoding Rules DER. In versions 11.0.5 and below, in some cases, decoding an INTEGER could leak the underlying ArrayBuffer. This issue is expected to be fixed in version 11.0.6...

CVE-2026-27452

ASN.1 TypeScript ESM library, including codecs for Basic Encoding Rules BER and Distinguished Encoding Rules DER. In versions 11.0.5 and below, in some cases, decoding an INTEGER could leak the underlying ArrayBuffer. This issue is expected to be fixed in version 11.0.6...

CVE-2026-27452 ASN.1 TypeScript Library: Decoding an INTEGER could leak the underlying ArrayBuffer

ASN.1 TypeScript ESM library, including codecs for Basic Encoding Rules BER and Distinguished Encoding Rules DER. In versions 11.0.5 and below, in some cases, decoding an INTEGER could leak the underlying ArrayBuffer. This issue is expected to be fixed in version 11.0.6...

CVE-2026-26989

LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Versions 25.12.0 and below are affected by a Stored Cross-Site Scripting XSS vulnerability in the Alert Rules workflow. An attacker with administrative privileges can inject malicious scripts that execute in the browser...

CVE-2026-21620

A flaw was found in Erlang OTP tftpfile modules. This vulnerability allows an attacker to exploit a weakness in how file paths are handled, known as Relative Path Traversal. By manipulating these paths, an attacker could gain unauthorized access to sensitive files on the system, potentially leadi...

CVE-2026-26989

LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Versions 25.12.0 and below are affected by a Stored Cross-Site Scripting XSS vulnerability in the Alert Rules workflow. An attacker with administrative privileges can inject malicious scripts that execute in the browser...

CVE-2026-26989

LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Versions 25.12.0 and below are affected by a Stored Cross-Site Scripting XSS vulnerability in the Alert Rules workflow. An attacker with administrative privileges can inject malicious scripts that execute in the browser...