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...

SUSE CVE-2026-18446

fast-uri before 4.1.2, 3.1.5, and 2.4.4 requires a literal double forward slash to recognize a URI authority, so a reference that uses a backslash based introducer in place of it backslash backslash, forward slash backslash, or backslash forward slash is parsed with no authority and folds into th...

Exploit for CVE-2026-2020

--- CVE-2026-2020 – SSRF via URL Parser Differential...

SUSE CVE-2026-67201

V through 0.5.2, fixed in commit 85859f0, contains a server-side request forgery SSRF bypass vulnerability that allows attackers to circumvent host-based allowlists by exploiting a parser differential between net.urllib and net.http. Attackers can craft a URL containing a backslash in the authori...

CVE-2026-18446

fast-uri before 4.1.2, 3.1.5, and 2.4.4 requires a literal double forward slash to recognize a URI authority, so a reference that uses a backslash based introducer in place of it backslash backslash, forward slash backslash, or backslash forward slash is parsed with no authority and folds into th...

CVE-2026-18446 fast-uri vulnerable to host confusion via backslash authority introducer

fast-uri before 4.1.2, 3.1.5, and 2.4.4 requires a literal double forward slash to recognize a URI authority, so a reference that uses a backslash based introducer in place of it backslash backslash, forward slash backslash, or backslash forward slash is parsed with no authority and folds into th...

EUVD-2026-40093

fast-uri vulnerable to host confusion via failed IDN canonicalization...

DEBIAN-CVE-2026-16221

Impact: fast-uri versions from 2.3.1 through 4.1.0 including the 3.x line up to 3.1.3 and the 2.x line up to 2.4.2 do not treat a literal backslash character U+005C as an authority delimiter. Node's native WHATWG URL parser, used by fetch, undici, and Node's http and https clients, normalizes the...

CVE-2026-16221

Impact: fast-uri versions from 2.3.1 through 4.1.0 including the 3.x line up to 3.1.3 and the 2.x line up to 2.4.2 do not treat a literal backslash character U+005C as an authority delimiter. Node's native WHATWG URL parser, used by fetch, undici, and Node's http and https clients, normalizes the...

CVE-2026-48760 Symfony: HtmlSanitizer URL Parser Deny Gates Underinclusive: Percent-Encoded BiDi Marks and Unicode Whitespace Bypass Visual-Spoofing Defense

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 6.1.0 until 6.4.41, 7.4.13, and 8.0.13, UrlSanitizer::parse rejected raw BiDi formatting characters but not percent-encoded forms and used an ASCII-only whitespace check, allowing sanitized URLs...

CVE-2026-58228 Scheme validation bypass in Phoenix.LiveView.Utils leads to XSS via <.link>

Cross-site scripting vulnerability in phoenixframework phoenixliveview allows an attacker to bypass URL scheme validation and execute JavaScript in a victim's browser session. The Phoenix.LiveView.Utils.validdestination!/2 and Phoenix.LiveView.Utils.validlivenavigationdestination!/2 functions in...

CVE-2026-58228 Scheme validation bypass in Phoenix.LiveView.Utils leads to XSS via <.link>

Cross-site scripting vulnerability in phoenixframework phoenixliveview allows an attacker to bypass URL scheme validation and execute JavaScript in a victim's browser session. The Phoenix.LiveView.Utils.validdestination!/2 and Phoenix.LiveView.Utils.validlivenavigationdestination!/2 functions in...

CVE-2026-50168

A flaw was found in the @angular/platform-server package of Angular. This vulnerability allows remote attackers to bypass host allowlist constraints and direct server-side outgoing requests to arbitrary external endpoints. This occurs due to a parser differential between the strict WHATWG URL...

PT-2026-57851

Cross-site scripting vulnerability in phoenixframework phoenix live view allows an attacker to bypass URL scheme validation and execute JavaScript in a victim's browser session. The Phoenix.LiveView.Utils.valid destination!/2 and Phoenix.LiveView.Utils.valid live navigation destination!/2 functio...

CVE-2026-56233

Capgo before 12.128.2 contains a path traversal vulnerability in the builder upload proxy. Authenticated users with build permissions can bypass upload restrictions by appending traversal sequences to the upload path, which are normalized by the WHATWG URL parser, enabling access to internal admi...

SUSE 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

The CVE concerns the fast-uri library (versions 2.3.1–3.1.2 and 4.0.0) where the IDN host canonicalization path fails to normalize Unicode hosts for HTTP URLs. A helper used in IDN conversion does not exist on the global URL constructor, leaving the host in Unicode form while normalize() and equa...

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...

Hackney vulnerable to atom-table exhaustion via unrecognized URL schemes

Summary CVE-2026-47067 is an atom table exhaustion vulnerability CWE-770 in hackney's URL parser src/hackneyurl.erl. hackneyurl:parseurl/1 converts every URL scheme it encounters into a BEAM atom via binarytoatom/2. Because BEAM atoms are never garbage-collected and the atom table has a hard limi...

DEBIAN-CVE-2026-50168

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.0-rc.2, 21.2.15, 20.3.22, and 19.2.23, an issue in the @angular/platform-server package allows remote attackers to bypass host allowlist constraints an...