{
  "id": "CVE-2026-70454",
  "url": "https://spydr.io/cve/CVE-2026-70454",
  "published": "2026-08-13T15:19:59.047Z",
  "modified": "2026-09-08T20:28:37.587Z",
  "score": 7.6,
  "severity": "high",
  "cvss_version": "4.0",
  "vector": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
  "score_source": "vulncheck.com",
  "epss": 0.0019,
  "epss_percentile": 0.07787,
  "exploited": false,
  "kev": null,
  "ssvc_exploitation": "none",
  "vendors": [
    "RsyncProject"
  ],
  "products": [
    "RsyncProject rsync"
  ],
  "cwes": [
    "CWE-295"
  ],
  "description": "rsync 3.2.0 through 3.2.3 (openssl mode) and rsync-ssl through 3.4.4 (stunnel mode) contain a TLS certificate validation vulnerability that allows on-path attackers to intercept encrypted sessions by presenting self-signed or otherwise invalid certificates. Attackers can exploit the failure to validate server TLS certificates against a trusted CA or verify certificate hostname matching to decrypt or tamper with rsync session content without detection by the client.",
  "status": "Awaiting Analysis",
  "score_type": "Secondary",
  "scores": {
    "cvss_v40": 7.6,
    "cvss_v31": 8,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "https://github.com/RsyncProject/rsync/releases/tag/v3.5.0",
      "tags": []
    },
    {
      "url": "https://github.com/RsyncProject/rsync/security/advisories/GHSA-3c3x-ww2w-5r5p",
      "tags": []
    },
    {
      "url": "https://www.vulncheck.com/advisories/rsync-tls-certificate-validation-bypass-via-ssl-openssl-mode",
      "tags": []
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-70454",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}