fast-uri: fast-uri: Security policy bypass due to improper Unicode hostname canonicalization

A flaw was found in fast-uri. This vulnerability occurs because fast-uri fails to properly convert Unicode Internationalized Domain Name - IDN hostnames for HTTP-family URLs. This can lead to a situation where security policies, such as denylists or redirect validations, are bypassed when...

CVE-2026-73508

Netty is an asynchronous, event-driven network application framework. Prior to 4.1.136.Final and 4.2.16.Final, io.netty.handler.codec.dns.AbstractDnsRecord, io.netty.handler.codec.dns.DefaultDnsRecordDecoder.decodeRecord, and io.netty.handler.codec.dns.DnsCodecUtil.decompressDomainName failed to...

CVE-2026-73508

Netty is an asynchronous, event-driven network application framework. Prior to 4.1.136.Final and 4.2.16.Final, io.netty.handler.codec.dns.AbstractDnsRecord, io.netty.handler.codec.dns.DefaultDnsRecordDecoder.decodeRecord, and io.netty.handler.codec.dns.DnsCodecUtil.decompressDomainName failed to...

Security Bulletin: Multiple Vulnerabilities in IBM Data Product Hub

Summary Multiple vulnerabilities were addressed in IBM Data Product Hub version 5.4.0 Patch 4 Vulnerability Details CVEID:CVE-2026-12143 DESCRIPTION: form-data is a library for creating readable multipart/form-data streams. In versions through 4.0.5, the field argument to FormDataappend and the...

Security Bulletin: IBM Bob Premium Package for i is affected by multiple vulnerabilities

Summary There are multiple vulnerabilities in IBM Bob Premium Package for i. fast-uri can fail to canonicalize Unicode hostnames CVE-2026-13676. Hono Web Application framework can allow untrusted className values CVE-2026-59895, does not isolate context vales CVE-2026-59896, can drop distinct...

PT-2026-67523

Guzzle is an extensible PHP HTTP client. Prior to 7.15.2 and 8.0.1, Guzzle gives a transport the request URI as text and supplies the Host header separately. The cURL handlers set CURLOPT URL to the URI exactly as written and push that Host into CURLOPT HTTPHEADER; StreamHandler does the same...

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...

CVE-2026-46644 symfony/polyfill-intl-idn accepts xn-- labels whose Punycode payload decodes to ASCII-only: insecure equivalence

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...

CVE-2026-46644

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...

Linux Distros Unpatched Vulnerability : CVE-2026-13676

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - fast-uri versions 2.3.1 through 3.1.2 and 4.0.0 fail to canonicalize Unicode IDN hostnames for HTTP- family URLs. The IDN conversion path calls a helper that do...

DEBIAN-CVE-2026-13676

fast-uri versions 2.3.1 through 3.1.2 and 4.0.0 fail to canonicalize Unicode IDN hostnames for HTTP-family URLs. The IDN conversion path calls a helper that does not exist on the global URL constructor, silently leaving the host in its original Unicode form while normalize and equal still return...

CVE-2026-13676 fast-uri vulnerable to host confusion via failed IDN canonicalization

fast-uri versions 2.3.1 through 3.1.2 and 4.0.0 fail to canonicalize Unicode IDN hostnames for HTTP-family URLs. The IDN conversion path calls a helper that does not exist on the global URL constructor, silently leaving the host in its original Unicode form while normalize and equal still return...

CVE-2026-13676 fast-uri vulnerable to host confusion via failed IDN canonicalization

fast-uri versions 2.3.1 through 3.1.2 and 4.0.0 fail to canonicalize Unicode IDN hostnames for HTTP-family URLs. The IDN conversion path calls a helper that does not exist on the global URL constructor, silently leaving the host in its original Unicode form while normalize and equal still return...

CVE-2026-57053

GNU libidn before 1.44 is prone to out-of-bounds reads of uninitialized memory in the ToUnicode APIs because of mishandling in idnatounicodeinternal. The affected code is not present in libidn2...

GHSA-2XF4-CG6J-VHGQ symfony/polyfill-intl-idn: xn-- labels with ASCII-only Punycode payloads are treated as equivalent to their decoded form

Description symfony/polyfill-intl-idn provides a userland implementation of idntoutf8 and idntoascii for runtimes that lack the intl extension. Its Idn::process method decodes labels prefixed with xn-- using Punycode but never enforces the validity criterion added in UTS 46 revision 33 Section 4...

CVE-2026-9078

Firefox for iOS displayed specially crafted right-to-left RTL and internationalized domain names IDNs incorrectly in link preview UI surfaces. A crafted RTL hostname could visually reorder portions of the displayed domain, causing attacker-controlled sites to appear as trusted origins. This...

Linux Distros Unpatched Vulnerability : CVE-2026-46644

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

Incorrect Comparison

Overview Affected versions of this package are vulnerable to Incorrect Comparison in the process function in Idn.php, which does not necessarily treat xn-- labeled input as punycode, if it contains only ASCII. This case was overlooked in the specification until UTS 46 revision 33, when it was...

PT-2026-43074

Name of the Vulnerable Software and Affected Versions Firefox for iOS versions prior to 151.1 Description Firefox for iOS incorrectly displayed specially crafted right-to-left RTL and internationalized domain names IDNs within link preview UI surfaces. A crafted RTL hostname could visually reorde...

Astra Linux – Vulnerability in Chromium

Insufficient data validation in URL formatting in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to perform domain spoofing via IDN homographs via a crafted domain name...