fast-uri vulnerable to host confusion via literal backslash authority delimiter
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||
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| fast-uri | fast-uri | unaffected |
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Configuration 1 [-]
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No data.
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| Fast-uri | Fast-uri |
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| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-v2hh-gcrm-f6hx | fast-uri vulnerable to host confusion via literal backslash authority delimiter |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.436% 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 | 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 backslash to a forward slash for special schemes such as http, https, ws, wss, ftp, and file. As a result, the two parsers extract different hosts from the same input string. Applications that use fast-uri to enforce host-based policy such as allowlists, denylists, loopback or SSRF filtering, redirect validation, or outbound proxy routing before passing the same URL into Node's URL or fetch consumers can be steered to an unintended destination, including cloud metadata endpoints, loopback, or internal hosts. Patches: upgrade to fast-uri 4.1.1, 3.1.4, or 2.4.3. Workarounds: none. | |
| Title | fast-uri vulnerable to host confusion via literal backslash authority delimiter | |
| Weaknesses | CWE-436 | |
| References |
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| Metrics |
cvssV3_1
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