DEBIAN-CVE-2026-37236
grpc-gateway v2.28.0 is vulnerable to Incorrect Access Control. The application processes the X-HTTP-Method-Override header in ServeMux.ServeHTTP without restricting allowed methods. When a POST request with Content-Type application/x-www-form-urlencoded includes this header, the request method is rewritten to an arbitrary attacker-supplied value before routing. This allows bypassing method-based access controls enforced by upstream proxies or WAFs.
DEBIAN-CVE-2026-37236
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-2026-37236
golang-github-grpc-ecosystem-grpc-gateway
Source reference: /affected/0/package/name
- Affected versions
- 1.16.0-1
Source reference:
/affected/0/versions1.16.0-2Source reference:
/affected/0/versions1.16.0-3Source reference:
/affected/0/versions1.16.0-4Source reference:
/affected/0/versions1.6.4-2Source reference:
/affected/0/versions2.20.0-1Source reference:
/affected/0/versions2.20.0-2Source reference:
/affected/0/versions2.27.2-1Source reference:
/affected/0/versions2.27.2-2Source reference:
/affected/0/versions2.27.2-3Source reference:
/affected/0/versions2.30.0-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
golang-github-grpc-ecosystem-grpc-gateway
Source reference: /affected/1/package/name
- Affected versions
- 2.20.0-2
Source reference:
/affected/1/versions2.27.2-1Source reference:
/affected/1/versions2.27.2-2Source reference:
/affected/1/versions2.27.2-3Source reference:
/affected/1/versions2.30.0-1Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
golang-github-grpc-ecosystem-grpc-gateway
Source reference: /affected/2/package/name
- Affected versions
- 2.20.0-2
Source reference:
/affected/2/versions2.27.2-1Source reference:
/affected/2/versions2.27.2-2Source reference:
/affected/2/versions2.27.2-3Source reference:
/affected/2/versions - Fixed versions
- 2.30.0-1
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"
}
]
}
],
"package": {
"name": "golang-github-grpc-ecosystem-grpc-gateway",
"purl": "pkg:deb/debian/golang-github-grpc-ecosystem-grpc-gateway?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"1.16.0-1",
"1.16.0-2",
"1.16.0-3",
"1.16.0-4",
"1.6.4-2",
"2.20.0-1",
"2.20.0-2",
"2.27.2-1",
"2.27.2-2",
"2.27.2-3",
"2.30.0-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-37236.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "golang-github-grpc-ecosystem-grpc-gateway",
"purl": "pkg:deb/debian/golang-github-grpc-ecosystem-grpc-gateway?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"2.20.0-2",
"2.27.2-1",
"2.27.2-2",
"2.27.2-3",
"2.30.0-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-37236.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.30.0-1"
}
]
}
],
"package": {
"name": "golang-github-grpc-ecosystem-grpc-gateway",
"purl": "pkg:deb/debian/golang-github-grpc-ecosystem-grpc-gateway?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"2.20.0-2",
"2.27.2-1",
"2.27.2-2",
"2.27.2-3"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-37236.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #56430 · Revision 1
- Added to Heist Feed
- Publisher date