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DEBIAN-CVE-2026-37236

Type: advisorySource: OSV1 source record

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.

Announced Source revision 1
Original source ↗

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/versions

1.16.0-2

Source reference: /affected/0/versions

1.16.0-3

Source reference: /affected/0/versions

1.16.0-4

Source reference: /affected/0/versions

1.6.4-2

Source reference: /affected/0/versions

2.20.0-1

Source reference: /affected/0/versions

2.20.0-2

Source reference: /affected/0/versions

2.27.2-1

Source reference: /affected/0/versions

2.27.2-2

Source reference: /affected/0/versions

2.27.2-3

Source reference: /affected/0/versions

2.30.0-1

Source 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/versions

2.27.2-1

Source reference: /affected/1/versions

2.27.2-2

Source reference: /affected/1/versions

2.27.2-3

Source reference: /affected/1/versions

2.30.0-1

Source 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/versions

2.27.2-1

Source reference: /affected/2/versions

2.27.2-2

Source reference: /affected/2/versions

2.27.2-3

Source 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
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