CVE-2026-76172 fast-uri vulnerable to host confusion via percent-encoded scheme normalization

fast-uri is a URI parser for Node.js. During parsing it runs a legacy decoding pass over the scheme component and never re-escapes the result, and serialization writes the scheme back out verbatim, unlike the host component which is re-escaped. As a result an input whose scheme carries...

CVE-2026-76172 fast-uri vulnerable to host confusion via percent-encoded scheme normalization

fast-uri is a URI parser for Node.js. During parsing it runs a legacy decoding pass over the scheme component and never re-escapes the result, and serialization writes the scheme back out verbatim, unlike the host component which is re-escaped. As a result an input whose scheme carries...

CVE-2026-76172 fast-uri vulnerable to host confusion via percent-encoded scheme normalization

fast-uri is a URI parser for Node.js. During parsing it runs a legacy decoding pass over the scheme component and never re-escapes the result, and serialization writes the scheme back out verbatim, unlike the host component which is re-escaped. As a result an input whose scheme carries...

CVE-2026-76172

fast-uri is a URI parser for Node.js. During parsing it runs a legacy decoding pass over the scheme component and never re-escapes the result, and serialization writes the scheme back out verbatim, unlike the host component which is re-escaped. As a result an input whose scheme carries...

CVE-2026-75975

fast-uri is a URI parser for Node.js whose custom bracketed IPv6 literal parser fails to validate the full IPv6 grammar. Invalid trailing text in an authority is silently discarded, causing a malformed attacker-controlled host to normalize to a different valid IPv6 destination (e.g., the unspecif...

CVE-2026-75975 fast-uri vulnerable to server-side request forgery via malformed IPv6 normalization

fast-uri is a URI parser for Node.js. Its custom parser for bracketed IPv6 literals does not validate the complete IPv6 grammar, so invalid trailing text in an authority can be silently discarded and a malformed attacker-controlled host is turned into a different valid IPv6 destination. For...

CVE-2026-75975

fast-uri is a URI parser for Node.js. Its custom parser for bracketed IPv6 literals does not validate the complete IPv6 grammar, so invalid trailing text in an authority can be silently discarded and a malformed attacker-controlled host is turned into a different valid IPv6 destination. For...

CVE-2026-75975 fast-uri vulnerable to server-side request forgery via malformed IPv6 normalization

fast-uri is a URI parser for Node.js. Its custom parser for bracketed IPv6 literals does not validate the complete IPv6 grammar, so invalid trailing text in an authority can be silently discarded and a malformed attacker-controlled host is turned into a different valid IPv6 destination. For...

CVE-2026-75975

fast-uri is a URI parser for Node.js. Its custom parser for bracketed IPv6 literals does not validate the complete IPv6 grammar, so invalid trailing text in an authority can be silently discarded and a malformed attacker-controlled host is turned into a different valid IPv6 destination. For...

CVE-2026-75899

fast-uri , a URI parser for Node.js, suffers from double percent-decoding of the hostname: it decodes percent escapes during parsing and decodes them again during authority recomposition. This violates RFC 3986 §2.4 (an implementation must not decode the same string more than once) and allows a s...

CVE-2026-75899 fast-uri vulnerable to server-side request forgery via repeated hostname percent-decoding

fast-uri is a URI parser for Node.js. It decodes percent escapes in a hostname during parsing and then decodes the parsed hostname a second time during authority recomposition, so a single call to normalize or resolve can turn nested percent-encoded input into a different network destination such...

CVE-2026-75899 fast-uri vulnerable to server-side request forgery via repeated hostname percent-decoding

fast-uri is a URI parser for Node.js. It decodes percent escapes in a hostname during parsing and then decodes the parsed hostname a second time during authority recomposition, so a single call to normalize or resolve can turn nested percent-encoded input into a different network destination such...

CVE-2026-75899 fast-uri vulnerable to server-side request forgery via repeated hostname percent-decoding

fast-uri is a URI parser for Node.js. It decodes percent escapes in a hostname during parsing and then decodes the parsed hostname a second time during authority recomposition, so a single call to normalize or resolve can turn nested percent-encoded input into a different network destination such...

CVE-2026-75899

fast-uri is a URI parser for Node.js. It decodes percent escapes in a hostname during parsing and then decodes the parsed hostname a second time during authority recomposition, so a single call to normalize or resolve can turn nested percent-encoded input into a different network destination such...

CVE-2026-75931

fast-uri is a URI parser for Node.js. It canonicalizes a host to its ASCII form only when the input carries an explicit scheme, so a scheme-relative reference such as a host preceded by two slashes is returned with its host verbatim and no error set. As a result fast-uri's own entry points disagr...

CVE-2026-75931

fast-uri is a URI parser for Node.js. It canonicalizes a host to its ASCII form only when the input carries an explicit scheme, so a scheme-relative reference such as a host preceded by two slashes is returned with its host verbatim and no error set. As a result fast-uri's own entry points disagr...

External Control of File Name or Path

Overview Affected versions of this package are vulnerable to External Control of File Name or Path via Workbook.addImagefilename in lib/xlsx/xlsx.js addMedia. An attacker can read arbitrary files accessible to the Node.js process by supplying a filename fragment that escapes the intended base...

External Control of File Name or Path

Overview exceljs is a package to Read, manipulate and write spreadsheet data and styles to XLSX and JSON. Affected versions of this package are vulnerable to External Control of File Name or Path via Workbook.addImagefilename in lib/xlsx/xlsx.js addMedia. An attacker can read arbitrary files...

External Control of File Name or Path

Overview org.webjars.npm:exceljs is a package to Read, manipulate and write spreadsheet data and styles to XLSX and JSON. Affected versions of this package are vulnerable to External Control of File Name or Path via Workbook.addImagefilename in lib/xlsx/xlsx.js addMedia. An attacker can read...

CVE-2026-78208

exceljs through 4.4.0 contains a path traversal vulnerability in the Workbook.addImage function that fails to validate file paths. Attackers can supply arbitrary file paths to read any file accessible to the Node.js process and embed it in the generated workbook...