deskflow — security advisory

{
  "id": "6bee4811e36b603474a80cdcb12eb60de655bbe80dc51e1502d5e2196d8501cd",
  "url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-65832",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "UBUNTU-CVE-2026-65832",
    "summary": "Deskflow is a keyboard and mouse sharing app. Prior to continuous build 1.26.0.299, a remote unauthenticated Deskflow server can send kMsgDSetOptions (DSOP) values to ServerProxy::setOptions() in src/lib/client/ServerProxy.cpp so that the value following a modifier option poisons m_modifierTranslationTable, after which ServerProxy::translateKey() or ServerProxy::translateModifierMask() indexes the seven-row s_translationTable or s_masks arrays out of bounds, disclosing four bytes at an attacker-selected relative offset or crashing the connected client; an odd option count also causes an out-of-bounds OptionsList read. This issue is fixed in continuous build 1.26.0.299.",
    "evidence": "osv:UBUNTU-CVE-2026-65832",
    "products": [
      {
        "name": {
          "value": "deskflow",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.26.0+dfsg-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.26.0+dfsg-3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.26.0+dfsg-5ubuntu1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.27.0+dfsg-1",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "deskflow",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.23.0+dfsg-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.24.0+dfsg-2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.25.0+dfsg-2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.25.0+dfsg-3",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.26.0+dfsg-1",
            "evidence": "/affected/1/versions"
          }
        ]
      }
    ],
    "severity": "high",
    "structured": {
      "id": "UBUNTU-CVE-2026-65832",
      "aliases": [
        "UBUNTU-CVE-2026-65832"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H"
        },
        {
          "type": "Ubuntu",
          "score": "medium"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "deskflow",
            "purl": "pkg:deb/ubuntu/deskflow?arch=source&distro=stonking",
            "ecosystem": "Ubuntu:26.10"
          },
          "versions": [
            "1.26.0+dfsg-1",
            "1.26.0+dfsg-3",
            "1.26.0+dfsg-5ubuntu1",
            "1.27.0+dfsg-1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-65832.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "deskflow",
                "binary_version": "1.27.0+dfsg-1"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "deskflow",
            "purl": "pkg:deb/ubuntu/deskflow?arch=source&distro=resolute",
            "ecosystem": "Ubuntu:26.04:LTS"
          },
          "versions": [
            "1.23.0+dfsg-1",
            "1.24.0+dfsg-2",
            "1.25.0+dfsg-2",
            "1.25.0+dfsg-3",
            "1.26.0+dfsg-1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-65832.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "deskflow",
                "binary_version": "1.26.0+dfsg-1"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-17T12:59:17.335117501Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-65832"
      ],
      "references": [
        "https://ubuntu.com/security/CVE-2026-65832",
        "https://www.cve.org/CVERecord?id=CVE-2026-65832",
        "https://github.com/deskflow/deskflow/commit/205a3c803e5298d56683660736ec1a41b671b56e",
        "https://github.com/deskflow/deskflow/commit/8266fbbe6af93fa370018886c7f1f35d2cee8b3f",
        "https://github.com/deskflow/deskflow/security/advisories/GHSA-8rcq-7w87-h64j"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-65832",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 359594,
  "published_at": "2026-08-17T21:16:00+00:00"
}