Unrated

DEBIAN-CVE-2026-12611

Type: advisorySource: OSV1 source record

A client may issue HTTP/2 requests to a Jetty server that result in blocking writes that are never unblocked, eventually causing all threads to be blocked and the whole server to become unresponsive. This is caused by a race condition in the server when handling RST_STREAM frames and GOAWAY frames sent by the client. The race condition "resets" the HTTP2Flusher.terminated, previously set to a non-null value, to the null value, allowing entries to be enqueued in the flusher that however will never be processed. These unprocessed entries are the ones that would unblock the write-blocked threads.

Announced 8 Sept 2026Source revision 1

Original source ↗

DEBIAN-CVE-2026-12611

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-2026-12611

jetty12

Source reference: /affected/0/package/name

Affected versions: 12.0.17-3
Source reference: /affected/0/versions
12.0.17-3.1
Source reference: /affected/0/versions
12.0.17-3.1~deb13u1
Source reference: /affected/0/versions
12.0.32-1
Source reference: /affected/0/versions
12.0.32-2
Source reference: /affected/0/versions
12.0.33-1
Source reference: /affected/0/versions
12.0.39-1
Source reference: /affected/0/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

jetty12

Source reference: /affected/1/package/name

Affected versions: 12.0.17-3
Source reference: /affected/1/versions
12.0.17-3.1
Source reference: /affected/1/versions
12.0.17-3.1~deb13u1
Source reference: /affected/1/versions
12.0.32-1
Source reference: /affected/1/versions
12.0.32-2
Source reference: /affected/1/versions
12.0.33-1
Source reference: /affected/1/versions
12.0.39-1
Source reference: /affected/1/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

jetty9

Source reference: /affected/2/package/name

Affected versions: 9.4.50-4
Source reference: /affected/2/versions
9.4.50-4+deb12u1
Source reference: /affected/2/versions
9.4.50-4+deb12u2
Source reference: /affected/2/versions
9.4.50-4+deb12u3
Source reference: /affected/2/versions
9.4.51-1
Source reference: /affected/2/versions
9.4.51-2
Source reference: /affected/2/versions
9.4.52-1
Source reference: /affected/2/versions
9.4.53-1
Source reference: /affected/2/versions
9.4.54-1
Source reference: /affected/2/versions
9.4.55-1
Source reference: /affected/2/versions
9.4.56-1
Source reference: /affected/2/versions
9.4.57-0+deb12u1
Source reference: /affected/2/versions
9.4.57-1
Source reference: /affected/2/versions
9.4.57-1.1
Source reference: /affected/2/versions
9.4.57-1.1~deb12u1
Source reference: /affected/2/versions
9.4.57-1.1~deb13u1
Source reference: /affected/2/versions
9.4.58-1
Source reference: /affected/2/versions
9.4.58-2
Source reference: /affected/2/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

jetty9

Source reference: /affected/3/package/name

Affected versions: 9.4.57-1
Source reference: /affected/3/versions
9.4.57-1.1
Source reference: /affected/3/versions
9.4.57-1.1~deb12u1
Source reference: /affected/3/versions
9.4.57-1.1~deb13u1
Source reference: /affected/3/versions
9.4.58-1
Source reference: /affected/3/versions
9.4.58-2
Source reference: /affected/3/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

jetty9

Source reference: /affected/4/package/name

Affected versions: 9.4.57-1
Source reference: /affected/4/versions
9.4.57-1.1
Source reference: /affected/4/versions
9.4.57-1.1~deb12u1
Source reference: /affected/4/versions
9.4.57-1.1~deb13u1
Source reference: /affected/4/versions
9.4.58-1
Source reference: /affected/4/versions
9.4.58-2
Source reference: /affected/4/versions
Fixed versions: Not stated in this record
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": "jetty12",
      "purl": "pkg:deb/debian/jetty12?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "12.0.17-3",
      "12.0.17-3.1",
      "12.0.17-3.1~deb13u1",
      "12.0.32-1",
      "12.0.32-2",
      "12.0.33-1",
      "12.0.39-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-12611.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "jetty12",
      "purl": "pkg:deb/debian/jetty12?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "12.0.17-3",
      "12.0.17-3.1",
      "12.0.17-3.1~deb13u1",
      "12.0.32-1",
      "12.0.32-2",
      "12.0.33-1",
      "12.0.39-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-12611.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "jetty9",
      "purl": "pkg:deb/debian/jetty9?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "9.4.50-4",
      "9.4.50-4+deb12u1",
      "9.4.50-4+deb12u2",
      "9.4.50-4+deb12u3",
      "9.4.51-1",
      "9.4.51-2",
      "9.4.52-1",
      "9.4.53-1",
      "9.4.54-1",
      "9.4.55-1",
      "9.4.56-1",
      "9.4.57-0+deb12u1",
      "9.4.57-1",
      "9.4.57-1.1",
      "9.4.57-1.1~deb12u1",
      "9.4.57-1.1~deb13u1",
      "9.4.58-1",
      "9.4.58-2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-12611.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "jetty9",
      "purl": "pkg:deb/debian/jetty9?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "9.4.57-1",
      "9.4.57-1.1",
      "9.4.57-1.1~deb12u1",
      "9.4.57-1.1~deb13u1",
      "9.4.58-1",
      "9.4.58-2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-12611.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "jetty9",
      "purl": "pkg:deb/debian/jetty9?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "9.4.57-1",
      "9.4.57-1.1",
      "9.4.57-1.1~deb12u1",
      "9.4.57-1.1~deb13u1",
      "9.4.58-1",
      "9.4.58-2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-12611.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event: #55519 · Revision 1
Added to Heist Feed: Sun, 25 Oct 2026 16:03:21 GMT
Publisher date: Tue, 08 Sep 2026 13:17:17 GMT

Read the original announcement