CVE-2026-6322

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Source
https://cve.org/CVERecord?id=CVE-2026-6322
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-6322.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-6322
Aliases
Downstream
Related
Published
2026-05-05T10:29:16.378Z
Modified
2026-07-11T04:18:17.530263494Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
fast-uri vulnerable to host confusion via percent-encoded authority delimiters
Details

fast-uri normalize() decoded percent-encoded authority delimiters inside the host component and then re-emitted them as raw delimiters during serialization. A host that combined an allowed domain, an encoded at-sign, and a different domain was re-emitted with the at-sign as a raw userinfo separator, changing the URI's authority to the second domain. Applications that normalize untrusted URLs before host allowlist checks, redirect validation, or outbound request routing can be steered to a different authority than the input appeared to specify. Versions <= 3.1.1 are affected. Update to 3.1.2 or later.

Database specific 
{
    "cna_assigner": "openjs",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6322.json",
    "cwe_ids": [
        "CWE-436"
    ]
}
References

Affected packages

Git / github.com/fastify/fast-uri

Affected ranges

Type
GIT
Repo
https://github.com/fastify/fast-uri
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
919dd8ea7689fcc220d0d9b71307f5095e723ef9
Database specific 
{
    "cpe": "cpe:2.3:a:openjsf:fast-uri:*:*:*:*:*:node.js:*:*",
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.1.2"
        }
    ]
}

Affected versions

v0.*
v0.0.1
v0.0.2
v1.*
v1.0.0
v1.0.1
v2.*
v2.0.0
v2.1.0
v2.2.0
v2.3.0
v2.3.1
v2.4.0
v3.*
v3.0.0
v3.0.1
v3.0.2
v3.0.3
v3.0.4
v3.0.5
v3.0.6
v3.1.0
v3.1.1

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-6322.json"