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Security advisory

Type: advisorySources: OSVCVE: CVE-2026-96609

Robur Albatross 1.0.0 through 2.x before 2.7.2 does not limit use of the ring buffer, leading to an albatross-console loop with no recognized termination condition. This is only exploitable by users who can send console subscription commands to unikernels that produce sufficient log output to fill the ring buffer (1024 lines). It is not exploitable by unauthorized clients.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-96609
Confirmed fixed CVEs
Not specified
Updated in this feed
4 Nov 2026, 02:24 UTC · Revision 1

Source evidence

CVE-2026-96609

core-osv · Original source

Published 23 Sept 2026, 14:07 UTC

Robur Albatross 1.0.0 through 2.x before 2.7.2 does not limit use of the ring buffer, leading to an albatross-console loop with no recognized termination condition. This is only exploitable by users who can send console subscription commands to unikernels that produce sufficient log output to fill the ring buffer (1024 lines). It is not exploitable by unauthorized clients.

osv:CVE-2026-96609
Complete source record
{
  "id": "59110837f943878e58ccd055c920698b25e8c6b89e74e3cedbc294a4ceeb8610",
  "url": "https://osv.dev/vulnerability/CVE-2026-96609",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-96609",
    "summary": "Robur Albatross 1.0.0 through 2.x before 2.7.2 does not limit use of the ring buffer, leading to an albatross-console loop with no recognized termination condition. This is only exploitable by users who can send console subscription commands to unikernels that produce sufficient log output to fill the ring buffer (1024 lines). It is not exploitable by unauthorized clients.",
    "evidence": "osv:CVE-2026-96609",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-96609",
      "aliases": [
        "CVE-2026-96609",
        "OSEC-2026-09"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/robur-coop/albatross",
              "type": "GIT",
              "events": [
                {
                  "introduced": "4c619ee15cc21bc71fdc8da625b64c38cfdb81aa"
                },
                {
                  "fixed": "de8ac7626291d216a6085e051504b4a44c5b34be"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "1.0.0"
                      },
                      {
                        "fixed": "2.7.2"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.7.2"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.7.1",
            "v2.7.0",
            "v2.6.1",
            "v2.6.0",
            "v2.5.1",
            "v2.5.0",
            "v2.4.1",
            "v2.4.0",
            "v2.3.0",
            "v2.2.0",
            "v2.1.0",
            "v2.0.0",
            "v1.5.6",
            "v1.5.5",
            "v1.5.4",
            "v1.5.3",
            "v1.5.2",
            "v1.5.1",
            "v1.5.0",
            "v1.4.3",
            "v1.4.2",
            "v1.4.1",
            "v1.4.0",
            "v1.3.1",
            "v1.3.0",
            "v1.2.0",
            "v1.1.1",
            "v1.1.0",
            "v1.0.1",
            "v1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-96609.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:32.490733286Z",
      "provider": "osv",
      "references": [
        "https://osv.dev/vulnerability/OSEC-2026-09",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/96xxx/CVE-2026-96609.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-96609",
        "https://github.com/robur-coop/albatross/pull/273",
        "https://github.com/robur-coop/albatross"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-770"
        ],
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/96xxx/CVE-2026-96609.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-96609",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 499580,
  "published_at": "2026-09-23T14:07:16.336+00:00"
}