DEBIAN-CVE-2026-54282
Starlette is a lightweight ASGI framework/toolkit. Prior to 1.3.0, the HTTP request path is not validated before being used to reconstruct request.url. Because request.url is rebuilt by concatenating {scheme}://{host}{path} and re-parsing the result, a path that does not begin with / (for example @google.com) moves the authority boundary during re-parsing, so request.url.hostname and request.url.netloc become attacker-controlled. Code that reads request.url.hostname (rather than the Host header or scope) can therefore be misled into trusting an attacker-supplied host. This vulnerability is fixed in 1.3.0.
DEBIAN-CVE-2026-54282
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-54282
starlette
Source reference: /affected/0/package/name
- Affected versions
- 0.26.1-1
Source reference:
/affected/0/versions0.26.1-1+deb12u1Source reference:
/affected/0/versions - Fixed versions
- 0.26.1-1+deb12u2
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
starlette
Source reference: /affected/1/package/name
- Affected versions
- 0.46.1-3
Source reference:
/affected/1/versions0.46.1-3+deb13u1Source reference:
/affected/1/versions0.46.1-3+deb13u2Source reference:
/affected/1/versions - Fixed versions
- 0.46.1-3+deb13u3
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
starlette
Source reference: /affected/2/package/name
- Affected versions
- 0.46.1-3
Source reference:
/affected/2/versions0.50.0-1Source reference:
/affected/2/versions1.0.0-1Source reference:
/affected/2/versions1.1.0-1Source reference:
/affected/2/versions - Fixed versions
- 1.3.1-1
Source reference:
/affected/2/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.26.1-1+deb12u2"
}
]
}
],
"package": {
"name": "starlette",
"purl": "pkg:deb/debian/starlette?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"0.26.1-1",
"0.26.1-1+deb12u1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54282.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.46.1-3+deb13u3"
}
]
}
],
"package": {
"name": "starlette",
"purl": "pkg:deb/debian/starlette?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"0.46.1-3",
"0.46.1-3+deb13u1",
"0.46.1-3+deb13u2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54282.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.3.1-1"
}
]
}
],
"package": {
"name": "starlette",
"purl": "pkg:deb/debian/starlette?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"0.46.1-3",
"0.50.0-1",
"1.0.0-1",
"1.1.0-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54282.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #57816 · Revision 1
- Added to Heist Feed
- Publisher date