Internationalized Domain Name Validation

Nodemailer is vulnerable to an internationalized domain name validation/bypass. The vulnerability is due to inconsistent Punycode A-label generation, which allows an attacker to craft recipient addresses containing invisible characters or compatibility mappings to bypass domain allow-list checks...

Linux Distros Unpatched Vulnerability : CVE-2026-100891

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A vulnerability has been found in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this issue is the function opendmarcpolicyquerydmarc in the library...

CVE-2026-100891

A vulnerability has been found in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this issue is the function opendmarcpolicyquerydmarc in the library libopendmarc/opendmarcpolicy.c of the component Internationalized Domain Name Handler. Such manipulation leads to encoding error. It is...

DEBIAN-CVE-2026-100891

A vulnerability has been found in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this issue is the function opendmarcpolicyquerydmarc in the library libopendmarc/opendmarcpolicy.c of the component Internationalized Domain Name Handler. Such manipulation leads to encoding error. It is...

UBUNTU-CVE-2026-100891

A vulnerability has been found in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this issue is the function opendmarcpolicyquerydmarc in the library libopendmarc/opendmarcpolicy.c of the component Internationalized Domain Name Handler. Such manipulation leads to encoding error. It is...

CVE-2026-100891

A vulnerability has been found in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this issue is the function opendmarcpolicyquerydmarc in the library libopendmarc/opendmarcpolicy.c of the component Internationalized Domain Name Handler. Such manipulation leads to encoding error. It is...

CVE-2026-100891

A vulnerability exists in Trusted Domain Project OpenDMARC up to version 1.4.2 . The issue is located within the Internationalized Domain Name Handler component, specifically in the opendmarc_policy_query_dmarc function of the libopendmarc/opendmarc_policy.c library. An encoding error can be trig...

CVE-2026-100891

A vulnerability has been found in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this issue is the function opendmarcpolicyquerydmarc in the library libopendmarc/opendmarcpolicy.c of the component Internationalized Domain Name Handler. Such manipulation leads to encoding error. It is...

CVE-2026-100891 Trusted Domain Project OpenDMARC Internationalized Domain Name opendmarc_policy.c opendmarc_policy_query_dmarc encoding error

A vulnerability has been found in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this issue is the function opendmarcpolicyquerydmarc in the library libopendmarc/opendmarcpolicy.c of the component Internationalized Domain Name Handler. Such manipulation leads to encoding error. It is...

CVE-2026-100891

A vulnerability has been found in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this issue is the function opendmarcpolicyquerydmarc in the library libopendmarc/opendmarcpolicy.c of the component Internationalized Domain Name Handler. Such manipulation leads to encoding error. It is...

EUVD-2026-88055

A vulnerability has been found in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this issue is the function opendmarcpolicyquerydmarc in the library libopendmarc/opendmarcpolicy.c of the component Internationalized Domain Name Handler. Such manipulation leads to encoding error. It is...

CVE-2026-100891 Trusted Domain Project OpenDMARC Internationalized Domain Name opendmarc_policy.c opendmarc_policy_query_dmarc encoding error

A vulnerability has been found in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this issue is the function opendmarcpolicyquerydmarc in the library libopendmarc/opendmarcpolicy.c of the component Internationalized Domain Name Handler. Such manipulation leads to encoding error. It is...

CVE-2026-100891: Encoding Error

A vulnerability has been found in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this issue is the function opendmarcpolicyquerydmarc in the library libopendmarc/opendmarcpolicy.c of the component Internationalized Domain Name Handler. Such manipulation leads to encoding error. It is...

PT-2026-99738

Name of the Vulnerable Software and Affected Versions OpenDMARC versions prior to 1.4.3 Description An issue exists in the Internationalized Domain Name Handler component within the opendmarc policy query dmarc function located in the libopendmarc/opendmarc policy.c library. A remote attacker can...

Astra Linux – Vulnerability in Chromium

Insufficient data validation in URL formatting in Google Chrome prior to 103.0.5060.53 allowed a remote attacker to perform domain spoofing via IDN homographs via a crafted domain name...

PT-2026-65342

Summary A memory leak can be caused in Netty's DNS codec by sending malicious DNS packets containing invalid domain names. Because the leak occurs incrementally per packet, sustained malicious requests will cause a gradual Denial of Service. Details Inside...

NPM: fast-uri vulnerable to host confusion via failed IDN canonicalization

NPM: fast-uri vulnerable to host confusion via failed IDN canonicalization vulnerability discovered by ? in WordPress Npm fast-uri versions = 2.3.1, 2.4.2...

GHSA-4C8G-83QW-93J6 fast-uri vulnerable to host confusion via failed IDN canonicalization

Impact fast-uri versions = 2.3.1, = 4.0.0 fail to canonicalize Unicode/IDN hostnames for HTTP-family URLs. The IDN conversion path calls URL.domainToASCII... on the global WHATWG URL constructor, where that helper does not exist. The resulting TypeError is silently routed into parsed.error, but...

RHEL 9 : rhc (RHSA-2026:39879)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:39879 advisory. rhc is a client tool and daemon that connects the system to Red Hat hosted services enabling system and subscription management. Security...

EUVD-2026-44537

Symfony Polyfill backports PHP features and provides compatibility layers for extensions and functions. From 1.17.1 until 1.38.1, symfony/polyfill-intl-idn accepts xn-- labels whose Punycode payload is empty or decodes to ASCII-only code points because Idn::process does not enforce the UTS 46...