rsync: Fix of 3 CVEs

{
  "id": "f69be7de9504ef8c60e1488267361938e0832000bed1896ff6836a7737a848ef",
  "url": "https://osv.dev/vulnerability/CLSA-2026-1788956505",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "rsync: Fix of 3 CVEs",
    "summary": "- CVE-2026-53784: daemon module-root chdir escape under `use chroot = no` because change_dir() reached the module path with a plain chdir(), which followed a planted parent-component symlink and served files from outside the module; the module-root chdir now resolves through an ownership-checked O_NOFOLLOW path walk - CVE-2026-53802: arbitrary file read via symlinked operator-supplied input paths because --filter merge files (including per-directory merges and -C .cvsignore), --files-from/--include-from/--exclude-from and the --password-file / daemon secrets file were opened by path, letting a planted symlink feed an arbitrary file to the filter parser or the authentication response; these now use the same ownership-checked path walk - CVE-2026-53803: arbitrary file write via symlinked operator-supplied output paths because --log-file, --write-batch/--read-batch and the daemon motd, lock and --config opens resolved by path, letting a planted symlink redirect a privileged write; these now use the same ownership-checked path walk, and --read-batch additionally requires a regular file or a FIFO - Note: the ownership-checked path walk opens each intermediate directory for reading, where plain path resolution needed only search permission, so an operator path under a search-only (e.g. 0711) ancestor that the caller cannot read is now refused: --log-file falls back to syslog with a warning and --exclude-from fails. This matches upstream behaviour.",
    "evidence": "osv:CLSA-2026-1788956505",
    "products": [
      {
        "name": {
          "value": "rsync",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "3.1.3-12.el8_4.tuxcare.els13",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "rsync-daemon",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "3.1.3-12.el8_4.tuxcare.els13",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2026-1788956505",
      "aliases": [
        "CLSA-2026-1788956505"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "3.1.3-12.el8_4.tuxcare.els13"
                }
              ]
            }
          ],
          "package": {
            "name": "rsync",
            "purl": "pkg:rpm/tuxcare/rsync?distro=centos-8.4",
            "ecosystem": "TuxCare:CentOS:8.4"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1788956505.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "3.1.3-12.el8_4.tuxcare.els13"
                }
              ]
            }
          ],
          "package": {
            "name": "rsync-daemon",
            "purl": "pkg:rpm/tuxcare/rsync-daemon?distro=centos-8.4",
            "ecosystem": "TuxCare:CentOS:8.4"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1788956505.json"
          }
        }
      ],
      "modified": "2026-10-26T09:31:50.274219720Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-53784",
        "CVE-2026-53802",
        "CVE-2026-53803"
      ],
      "references": [
        "https://errata.tuxcare.com/els_os/centos8.4els/CLSA-2026-1788956505.html",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-53784",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-53802",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-53803"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-53784",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-53802",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-53803",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 448625,
  "published_at": "2026-09-09T12:21:57+00:00"
}