CVE-2026-48061

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Source
https://cve.org/CVERecord?id=CVE-2026-48061
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48061.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-48061
Aliases
Published
2026-08-03T20:47:34.673Z
Modified
2026-08-07T11:51:16.515577302Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
Litestar: AllowedHostsMiddleware bypasses host validation via client-controlled X-Forwarded-Host header
Details

Litestar is an Asynchronous Server Gateway Interface (ASGI) framework. In versions prior to 2.22.0, an attacker can bypass the allowed hosts validation by omitting the Host header and supplying an X-Forwarded-Host header set to a whitelisted domain. The AllowedHostsMiddleware trusts the X-Forwarded-Host header as a fallback when the Host header is absent. Since X-Forwarded-Host is a client-controllable header, this enables host header injection attacks such as password reset poisoning, cache poisoning, and server-side request routing manipulation. Any application using AllowedHostsConfig is affected when deployed without a reverse proxy that strips X-Forwarded-Host, or when accepting HTTP/1.0 connections. This issue has been fixed in version 2.22.0.

Database specific 
{
    "cwe_ids": [
        "CWE-644"
    ],
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48061.json"
}
References

Affected packages

Git / github.com/litestar-org/litestar

Affected ranges

Type
GIT
Repo
https://github.com/litestar-org/litestar
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
6930a20ceb543912cd651b42deae5b9f3637a262
Database specific 
{
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.22.0"
        }
    ]
}

Affected versions

0.*
0.7.2
v0.*
v0.0.1a
v0.1.0
v0.1.0b1
v0.1.1
v0.1.2
v0.1.3
v0.1.4
v0.1.5
v0.1.6
v0.2.0
v0.2.1
v0.3.0
v0.4.0
v0.4.1
v0.4.2
v0.4.3
v0.5.0
v0.6.0
v0.7.0
v0.7.1
v1.*
v1.0.0
v1.0.1
v1.0.2
v1.0.3
v1.0.4
v1.0.5
v1.1.0
v1.1.1
v1.10.0
v1.10.1
v1.11.0
v1.11.1
v1.12.0
v1.13.0
v1.13.1
v1.14.0
v1.14.1
v1.14.2
v1.15.0
v1.16.0
v1.16.1
v1.16.2
v1.17.0
v1.17.1
v1.17.2
v1.18.0
v1.18.1
v1.19.0
v1.2.0
v1.2.1
v1.2.2
v1.2.3
v1.2.4
v1.2.5
v1.20.0
v1.21.0
v1.21.1
v1.21.2
v1.22.0
v1.23.0
v1.23.1
v1.24.0
v1.25.0
v1.26.0
v1.26.1
v1.27.0
v1.28.0
v1.28.1
v1.29.0
v1.3.0
v1.3.1
v1.3.2
v1.3.3
v1.3.4
v1.3.5
v1.3.6
v1.3.7
v1.3.8
v1.3.9
v1.30.0
v1.31.0
v1.32.0
v1.33.0
v1.34.0
v1.35.0
v1.35.1
v1.36.0
v1.37.0
v1.38.0
v1.39.0
v1.4.0
v1.4.1
v1.4.2
v1.40.0
v1.40.1
v1.41.0
v1.42.0
v1.43.0
v1.43.1
v1.44.0
v1.45.0
v1.45.1
v1.46.0
v1.47.0
v1.48.0
v1.48.1
v1.49.0
v1.5.0
v1.5.1
v1.5.2
v1.5.3
v1.5.4
v1.50.0
v1.50.1
v1.50.2
v1.51.0
v1.6.0
v1.6.1
v1.6.2
v1.6.3
v1.7.0
v1.7.1
v1.7.3
v1.8.0
v1.8.1
v1.9.0
v1.9.1
v2.*
v2.0.0
v2.0.0alpha1
v2.0.0alpha2
v2.0.0alpha3
v2.0.0alpha4
v2.0.0alpha5
v2.0.0alpha6
v2.0.0alpha7
v2.0.0beta1
v2.0.0beta2
v2.0.0beta3
v2.0.0beta4
v2.0.0rc1
v2.1.0
v2.1.1
v2.10.0
v2.11.0
v2.12.0
v2.12.1
v2.13.0
v2.14.0
v2.15.0
v2.15.1
v2.15.2
v2.16.0
v2.17.0
v2.18.0
v2.19.0
v2.2.0
v2.2.1
v2.20.0
v2.21.0
v2.21.1
v2.3.0
v2.3.1
v2.3.2
v2.4.0
v2.4.1
v2.4.2
v2.4.3
v2.4.4
v2.4.5
v2.5.0
v2.5.1
v2.5.2
v2.5.3
v2.5.4
v2.5.5
v2.6.0
v2.6.1
v2.6.2
v2.6.3
v2.7.0
v2.7.1
v2.8.0
v2.9.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48061.json"