{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "3.4.4"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "471e17dc0d68233db84db11be82c9f62f4661214"
            }
          ],
          "repo": "https://github.com/rsyncproject/rsync",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-p827-vwcp-m964"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-1284"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53794.json"
  },
  "details": "rsync before 3.5.0 contains a logic error in --max-alloc handling that allows a sender or configuration setting --max-alloc=0 to disable allocation sanity checks entirely rather than enforcing a zero-byte cap. Attackers can exploit this flaw to cause the receiver to attempt unbounded memory allocations for file list and data structures, potentially exhausting available memory and causing a denial of service.",
  "id": "CVE-2026-53794",
  "modified": "2026-08-15T11:31:07.197248473Z",
  "published": "2026-08-13T14:39:01.158Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53794.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/RsyncProject/rsync/releases/tag/v3.5.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/RsyncProject/rsync/security/advisories/GHSA-p827-vwcp-m964"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53794"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/rsync-denial-of-service-via-max-alloc-0-logic-error"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/RsyncProject/rsync"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "rsync \u003c 3.5.0 Denial of Service via --max-alloc=0 Logic Error"
}