rsync: Fix of 7 CVEs

{
  "id": "edea4d90f450dbaca3319685968c6ab95e80b262d2d50d92f33222886ef79702",
  "url": "https://osv.dev/vulnerability/CLSA-2026-1790267010",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "rsync: Fix of 7 CVEs",
    "summary": "- CVE-2026-53783: rrsync restricted-directory escape through a symlinked or raced path component, --copy-unsafe-links, -D or a symlinked log file; partial, the dir-merge rule escape needs --confine-root (3.5.0) - CVE-2026-53790: the daemon's pre-xfer/post-xfer exec hooks and RSYNC_CONNECT_PROG expanded %RSYNC_*%/%H into a shell command without escaping them - CVE-2026-70453: unbounded hash_search() chain walk let a crafted run of equal weak checksums pin the sender at 100% CPU; the per-offset walk is now bounded - CVE-2026-70456: heap out-of-bounds write in read_args() when the peer's argument count lands exactly on the argv allocation; room for the trailing NULL is reserved - CVE-2026-70458: out-of-bounds write from a file entry marked FLAG_HLINKED accepted while hard-link preservation was inactive; the flag is now gated and excludes dirs - CVE-2026-70462: a peer-supplied MSG_IO_TIMEOUT could disable or overflow the client's own I/O timeout; non-positive values are ignored and the value is capped - CVE-2026-70464: the pre-transfer daemon handshake ran with no I/O timeout, so an unauthenticated peer could hold every max-connections slot indefinitely - safe_arg() left an uninitialized heap byte in remote-shell filename args",
    "evidence": "osv:CLSA-2026-1790267010",
    "products": [
      {
        "name": {
          "value": "rsync",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "3.1.3-19.el8.1.tuxcare.els11",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "rsync-daemon",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "3.1.3-19.el8.1.tuxcare.els11",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2026-1790267010",
      "aliases": [
        "CLSA-2026-1790267010"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "3.1.3-19.el8.1.tuxcare.els11"
                }
              ]
            }
          ],
          "package": {
            "name": "rsync",
            "purl": "pkg:rpm/tuxcare/rsync?distro=centos-stream-8",
            "ecosystem": "TuxCare:CentOS-Stream:8"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1790267010.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "3.1.3-19.el8.1.tuxcare.els11"
                }
              ]
            }
          ],
          "package": {
            "name": "rsync-daemon",
            "purl": "pkg:rpm/tuxcare/rsync-daemon?distro=centos-stream-8",
            "ecosystem": "TuxCare:CentOS-Stream:8"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1790267010.json"
          }
        }
      ],
      "modified": "2026-10-26T09:30:54.910717183Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-53783",
        "CVE-2026-53790",
        "CVE-2026-70453",
        "CVE-2026-70456",
        "CVE-2026-70458",
        "CVE-2026-70462",
        "CVE-2026-70464"
      ],
      "references": [
        "https://errata.tuxcare.com/els_os/centos-stream8els/CLSA-2026-1790267010.html",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-53783",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-53790",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-70453",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-70456",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-70458",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-70462",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-70464"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-53783",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-53790",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-70453",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-70456",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-70458",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-70462",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-70464",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 447336,
  "published_at": "2026-09-24T16:23:45+00:00"
}