fast-uri vulnerable to host confusion via unchecked WHATWG host canonicalization
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| fast-uri | fast-uri | unaffected |
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No data.
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| Vendor | Product | Versions | ||||||||||||||||||||||||||||
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| Fast-uri | Fast-uri |
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| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-wjr9-j795-jxcr | fast-uri vulnerable to host confusion via unchecked WHATWG host canonicalization |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.255% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Fast-uri
Fast-uri fast-uri |
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| Vendors & Products |
Fast-uri
Fast-uri fast-uri |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| Description | fast-uri is a dependency-free RFC 3986 URI parser and serializer for Node.js. In versions from 2.4.2 through 2.4.7, from 3.1.3 through 3.1.8, and from 4.0.1 through 4.2.2, for HTTP-family schemes the canonicalizeHost() function passes the parsed host to the WHATWG URL parser and adopts its hostname without checking that the parser consumed the entire input as a host, so the authority can be silently rewritten: data before an at-sign is dropped and tab, carriage-return, and line-feed characters are stripped, with no error reported. An application that enforces host-based policy such as denylists, loopback filtering, redirect validation, or outbound proxy routing on one representation can then see the canonical host diverge from what it checked, allowing traffic to be steered to an unintended destination. The issue is fixed in fast-uri 2.4.8, 3.1.9, and 4.2.3, and users should upgrade to one of these versions or later. As a workaround, reject an authority that contains more than one at-sign or any tab, carriage-return, or line-feed before calling fast-uri, or treat any non-empty parse error as fatal and compare hosts only from the same parse result. | |
| Title | fast-uri vulnerable to host confusion via unchecked WHATWG host canonicalization | |
| Weaknesses | CWE-1286 CWE-20 CWE-436 |
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| References |
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| Metrics |
threat_severity
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cvssV3_1
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