UBUNTU-CVE-2026-37236

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Source
https://ubuntu.com/security/CVE-2026-37236
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-37236.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-37236
Upstream
Published
2026-08-28T16:17:00Z
Modified
2026-09-03T22:54:35.009671230Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:18.04:LTS
golang-github-grpc-ecosystem-grpc-gateway

Package

Name
golang-github-grpc-ecosystem-grpc-gateway
Purl
pkg:deb/ubuntu/golang-github-grpc-ecosystem-grpc-gateway?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.1.0+git20170127.54.6863684-1
1.2.2-1
1.3.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.3.0-1",
            "binary_name": "golang-github-grpc-ecosystem-grpc-gateway-dev"
        },
        {
            "binary_version": "1.3.0-1",
            "binary_name": "golang-grpc-gateway"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-37236.json"
Ubuntu:20.04:LTS
golang-github-grpc-ecosystem-grpc-gateway

Package

Name
golang-github-grpc-ecosystem-grpc-gateway
Purl
pkg:deb/ubuntu/golang-github-grpc-ecosystem-grpc-gateway?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.6.4-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.6.4-2",
            "binary_name": "golang-github-grpc-ecosystem-grpc-gateway-dev"
        },
        {
            "binary_version": "1.6.4-2",
            "binary_name": "golang-grpc-gateway"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-37236.json"
Ubuntu:22.04:LTS
golang-github-grpc-ecosystem-grpc-gateway

Package

Name
golang-github-grpc-ecosystem-grpc-gateway
Purl
pkg:deb/ubuntu/golang-github-grpc-ecosystem-grpc-gateway?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.6.4-2build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.6.4-2build2",
            "binary_name": "golang-github-grpc-ecosystem-grpc-gateway-dev"
        },
        {
            "binary_version": "1.6.4-2build2",
            "binary_name": "golang-grpc-gateway"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-37236.json"
Ubuntu:24.04:LTS
golang-github-grpc-ecosystem-grpc-gateway

Package

Name
golang-github-grpc-ecosystem-grpc-gateway
Purl
pkg:deb/ubuntu/golang-github-grpc-ecosystem-grpc-gateway?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.16.0-3build1
1.16.0-4
1.16.0-4ubuntu0.24.04.1
1.16.0-4ubuntu0.24.04.2
1.16.0-4ubuntu0.24.04.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.16.0-4ubuntu0.24.04.3",
            "binary_name": "golang-github-grpc-ecosystem-grpc-gateway-dev"
        },
        {
            "binary_version": "1.16.0-4ubuntu0.24.04.3",
            "binary_name": "golang-grpc-gateway"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-37236.json"
Ubuntu:26.04:LTS
golang-github-grpc-ecosystem-grpc-gateway

Package

Name
golang-github-grpc-ecosystem-grpc-gateway
Purl
pkg:deb/ubuntu/golang-github-grpc-ecosystem-grpc-gateway?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.20.0-2
2.20.0-2build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.20.0-2build1",
            "binary_name": "golang-github-grpc-ecosystem-grpc-gateway-dev"
        },
        {
            "binary_version": "2.20.0-2build1",
            "binary_name": "golang-grpc-gateway"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-37236.json"