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Medium

rsync < 3.5.0 Symlink Race Condition Information Disclosure

Type: advisorySources: OSV

rsync before 3.5.0 contains a symlink race condition vulnerability in the sender's source tree traversal that allows an attacker who can manipulate a parent directory of the source tree to redirect file reads to unintended paths. Attackers can atomically replace a parent directory component with a symlink pointing outside the source root between path resolution and file open operations to disclose file contents outside the intended transfer root.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-53797
Confirmed fixed CVEs
Not specified
Updated in this feed
2 Nov 2026, 20:21 UTC · Revision 1

Source evidence

rsync < 3.5.0 Symlink Race Condition Information Disclosure

core-osv · Original source

Published 13 Aug 2026, 14:40 UTC

rsync before 3.5.0 contains a symlink race condition vulnerability in the sender's source tree traversal that allows an attacker who can manipulate a parent directory of the source tree to redirect file reads to unintended paths. Attackers can atomically replace a parent directory component with a symlink pointing outside the source root between path resolution and file open operations to disclose file contents outside the intended transfer root.

osv:CVE-2026-53797
Complete source record
{
  "id": "e403ab655781ec8cd158922fe412fcb272979480e57b31c44d57b06e50531008",
  "url": "https://osv.dev/vulnerability/CVE-2026-53797",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "rsync < 3.5.0 Symlink Race Condition Information Disclosure",
    "summary": "rsync before 3.5.0 contains a symlink race condition vulnerability in the sender's source tree traversal that allows an attacker who can manipulate a parent directory of the source tree to redirect file reads to unintended paths. Attackers can atomically replace a parent directory component with a symlink pointing outside the source root between path resolution and file open operations to disclose file contents outside the intended transfer root.",
    "evidence": "osv:CVE-2026-53797",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-53797",
      "aliases": [
        "CVE-2026-53797",
        "GHSA-3jj3-qvc7-jp6x"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.samba.org/rsync.git/",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "471e17dc0d68233db84db11be82c9f62f4661214"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:samba:rsync:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.5.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            },
            {
              "repo": "https://github.com/rsyncproject/rsync",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "471e17dc0d68233db84db11be82c9f62f4661214"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:samba:rsync:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.5.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "471e17dc0d68233db84db11be82c9f62f4661214"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v3.5.0"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.4.3",
            "v3.4",
            "v3.2.7",
            "v3.4.1",
            "v3.4.2",
            "v3.4.0",
            "v3.3.0",
            "v3.3.0pre1",
            "v3.2.7pre1",
            "v3.2.6",
            "v3.2.5",
            "v3.2.5pre2",
            "v3.2.5pre1",
            "v3.2.4",
            "v3.2.4pre4",
            "v3.2.4pre3",
            "v3.2.4pre2",
            "v3.2.4pre1",
            "v3.2.3",
            "v3.2.3pre1",
            "v3.2.2",
            "v3.2.2pre3",
            "v3.2.2pre2",
            "v3.2.2pre1",
            "v3.2.1",
            "v3.2.1pre1",
            "v3.2.0",
            "v3.2.0pre3",
            "v3.2.0pre2",
            "v3.2.0pre1",
            "v3.1.3",
            "v3.1.3pre1",
            "v3.1.2",
            "v3.1.2pre1",
            "v3.1.1",
            "v3.1.1pre2",
            "v3.1.1pre1",
            "v3.1.0",
            "v3.1.0pre1",
            "v3.0.3",
            "v3.0.3pre3",
            "v3.0.3pre2",
            "v3.0.3pre1",
            "v3.0.2",
            "v3.0.1",
            "v3.0.1pre3",
            "v3.0.1pre2",
            "v3.0.1pre1",
            "v3.0.0",
            "v3.0.0pre10",
            "v3.0.0pre9",
            "v3.0.0pre8",
            "v3.0.0pre7",
            "v3.0.0pre6",
            "v3.0.0pre5",
            "v3.0.0pre4",
            "v3.0.0pre3",
            "v3.0.0pre2",
            "v3.0.0pre1",
            "v2.6.9",
            "v2.6.9pre3",
            "v2.6.9pre2",
            "v2.6.9pre1",
            "v2.6.8",
            "v2.6.8pre1",
            "v2.6.7",
            "v2.6.7pre3",
            "v2.6.7pre2",
            "v2.6.7pre1",
            "v2.6.6pre1",
            "v2.6.5",
            "v2.6.5pre2",
            "v2.6.5pre1",
            "v2.6.4",
            "v2.6.4pre4",
            "v2.6.4pre3",
            "v2.6.4pre2",
            "v2.6.4pre1",
            "v2.6.3",
            "v2.6.3pre2",
            "v2.6.3pre1",
            "v2.6.2",
            "v2.6.2pre1",
            "v2.6.1",
            "v2.6.1pre2",
            "v2.6.1pre1",
            "v2.6.0",
            "v2.6.0pre2",
            "v2.6.0pre1",
            "v2.5.6",
            "v2.5.5",
            "v2.5.5.rc1",
            "v2.5.4",
            "v2.5.4pre1",
            "v2.5.3",
            "v2.5.3pre1",
            "v2.5.2",
            "v2.5.2pre3",
            "v2.5.2pre2",
            "v2.5.2pre1",
            "v2.5.1",
            "v2.5.1pre3",
            "v2.5.1pre2",
            "v2.5.1pre1",
            "v2.5.0",
            "v2.4.7pre4",
            "v2.4.7pre2",
            "mbp_bk_export0",
            "v2.4.6",
            "v2.4.5",
            "v2.4.4",
            "v2.4.3",
            "v2.4.2",
            "v2.4.1",
            "v2.4.0",
            "v2.3.2",
            "v2.3.1",
            "v2.3.0",
            "v2.2.1",
            "v2.2.0",
            "v2.1.1",
            "v2.1.0",
            "v2.0.19",
            "v2.0.18",
            "v2.0.17",
            "v2.0.16",
            "v2.0.15",
            "v2.0.14",
            "v2.0.13",
            "v2.0.12",
            "v2.0.11",
            "v2.0.10",
            "v2.0.9",
            "v2.0.8",
            "v2.0.7",
            "v2.0.6",
            "v2.0.5",
            "v2.0.4",
            "v2.0.3",
            "v2.0.2",
            "v2.0.1",
            "v2.0.0",
            "v1.7.4",
            "v1.7.3",
            "v1.7.2",
            "v1.7.1",
            "v1.7.0",
            "v1.6.9",
            "v1.6.8",
            "v1.6.7",
            "v1.6.6",
            "v1.6.5",
            "v1.6.4"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53797.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:23.352346643Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53797.json",
        "https://github.com/RsyncProject/rsync/releases/tag/v3.5.0",
        "https://github.com/RsyncProject/rsync/security/advisories/GHSA-3jj3-qvc7-jp6x",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-53797",
        "https://www.vulncheck.com/advisories/rsync-symlink-race-condition-information-disclosure",
        "https://github.com/RsyncProject/rsync"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-367",
          "CWE-59"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53797.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-53797",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 489778,
  "published_at": "2026-08-13T14:40:19.547+00:00"
}