CVE-2026-18446

A flaw was found in fast-uri. This vulnerability arises because fast-uri incorrectly parses Uniform Resource Identifiers URIs when a backslash is used in place of a forward slash to introduce the authority component. This discrepancy with Node's native WHATWG URL parser can lead to host confusion...

fast-uri vulnerable to host confusion via backslash authority introducer

Impact fast-uri v4.1.1 and earlier require a literal // to recognize a URI authority, so a reference that uses \, /, or / as the authority introducer in place of //, after an optional scheme is parsed with no authority: the sequence and everything after it fold into the path. Node's native...

NPM: fast-uri vulnerable to host confusion via backslash authority introducer

NPM: fast-uri vulnerable to host confusion via backslash authority introducer vulnerability discovered by ? in WordPress Npm fast-uri versions 2.4.4...

GHSA-7P8R-X3MC-P8W7 fast-uri vulnerable to host confusion via backslash authority introducer

Impact fast-uri v4.1.1 and earlier require a literal // to recognize a URI authority, so a reference that uses \, /, or / as the authority introducer in place of //, after an optional scheme is parsed with no authority: the sequence and everything after it fold into the path. Node's native...

fast-uri: fast-uri: Host confusion vulnerability via backslash in URI authority

A flaw was found in fast-uri. This vulnerability arises because fast-uri incorrectly parses Uniform Resource Identifiers URIs when a backslash is used in place of a forward slash to introduce the authority component. This discrepancy with Node's native WHATWG URL parser can lead to host confusion...

fast-uri: fast-uri: Host confusion vulnerability via backslash in URI authority

A flaw was found in fast-uri. This vulnerability arises because fast-uri incorrectly parses Uniform Resource Identifiers URIs when a backslash is used in place of a forward slash to introduce the authority component. This discrepancy with Node's native WHATWG URL parser can lead to host confusion...

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...

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...

PT-2026-66759

Name of the Vulnerable Software and Affected Versions fast-uri versions prior to 4.1.2 fast-uri versions prior to 3.1.5 fast-uri versions prior to 2.4.4 Description The software requires a literal double forward slash to recognize a URI authority. If a backslash-based introducer is used instead...

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-2026-67201

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-2026-67201 V 0.5.2 SSRF Bypass via Parser Differential in net.urllib and net.http

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...

EUVD-2026-50446

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-2026-67201 V 0.5.2 SSRF Bypass via Parser Differential in net.urllib and net.http

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...

PT-2026-65870

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...