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jetty9 — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2020-27218

In Eclipse Jetty version 9.4.0.RC0 to 9.4.34.v20201102, 10.0.0.alpha0 to 10.0.0.beta2, and 11.0.0.alpha0 to 11.0.0.beta2, if GZIP request body inflation is enabled and requests from different clients are multiplexed onto a single connection, and if an attacker can send a request with a body that is received entirely but not consumed by the application, then a subsequent request on the same connection will see that body prepended to its body. The attacker will not see any data but may inject data into the body of the subsequent request.

Products
jetty9
Affected versions
Not specified
Fixed versions
9.4.35-1
CVEs
CVE-2020-27218
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 13:45 UTC · Revision 1

Source evidence

DEBIAN-CVE-2020-27218

core-osv · Original source

Published 28 Nov 2020, 01:15 UTC

In Eclipse Jetty version 9.4.0.RC0 to 9.4.34.v20201102, 10.0.0.alpha0 to 10.0.0.beta2, and 11.0.0.alpha0 to 11.0.0.beta2, if GZIP request body inflation is enabled and requests from different clients are multiplexed onto a single connection, and if an attacker can send a request with a body that is received entirely but not consumed by the application, then a subsequent request on the same connection will see that body prepended to its body. The attacker will not see any data but may inject data into the body of the subsequent request.

osv:DEBIAN-CVE-2020-27218

jetty9

Fixed versions: 9.4.35-1

jetty9

Fixed versions: 9.4.35-1

jetty9

Fixed versions: 9.4.35-1

Complete source record
{
  "id": "36a38dd12b61beaa5046beeadebe71fe05d23381cc18527c80012d38e4efa394",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2020-27218",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2020-27218",
    "summary": "In Eclipse Jetty version 9.4.0.RC0 to 9.4.34.v20201102, 10.0.0.alpha0 to 10.0.0.beta2, and 11.0.0.alpha0 to 11.0.0.beta2, if GZIP request body inflation is enabled and requests from different clients are multiplexed onto a single connection, and if an attacker can send a request with a body that is received entirely but not consumed by the application, then a subsequent request on the same connection will see that body prepended to its body. The attacker will not see any data but may inject data into the body of the subsequent request.",
    "evidence": "osv:DEBIAN-CVE-2020-27218",
    "products": [
      {
        "name": {
          "value": "jetty9",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "9.4.35-1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "jetty9",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "9.4.35-1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "jetty9",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "9.4.35-1",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "DEBIAN-CVE-2020-27218",
      "aliases": [
        "DEBIAN-CVE-2020-27218"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "9.4.35-1"
                }
              ]
            }
          ],
          "package": {
            "name": "jetty9",
            "purl": "pkg:deb/debian/jetty9?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-27218.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "9.4.35-1"
                }
              ]
            }
          ],
          "package": {
            "name": "jetty9",
            "purl": "pkg:deb/debian/jetty9?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-27218.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "9.4.35-1"
                }
              ]
            }
          ],
          "package": {
            "name": "jetty9",
            "purl": "pkg:deb/debian/jetty9?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-27218.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-26T12:02:41.838892802Z",
      "provider": "osv",
      "upstream": [
        "CVE-2020-27218"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2020-27218"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2020-27218",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 452799,
  "published_at": "2020-11-28T01:15:11.587+00:00"
}