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CVE-2026-70462

rsync 3.1.0 before 3.5.0 contains a signed integer…

rsync 3.1.0 before 3.5.0 contains a signed integer overflow vulnerability in the I/O timeout implementation that allows attackers to permanently disable connection timeouts by injecting MSG_IO_TIMEOUT messages carrying non-positive (zero or negative) values. Attackers can craft malicious MSG_IO_TIMEOUT messages that cause the timeout variable to wrap to a non-positive value, preventing the timeout check from firing and enabling idle or stalled connections to hold daemon slots indefinitely, leading to resource exhaustion.

Gravidade: High · CVSS 7.1CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/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
Published: Aug 12, 2026, 10:00:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.45% · Oct 27, 2026

Projects and upstream resources

[rsync][Source-reported homepage]

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Version impact has not been established. The original provider fields are retained below.

Provider details and historical evidence

Original provider fields

{
  "package_releases": [
    {
      "name": "rsync",
      "status": "fixed",
      "release": "sid",
      "version": "3.5.1+ds1-2"
    },
    {
      "name": "rsync",
      "status": "fixed",
      "release": "forky",
      "version": "3.5.1+ds1-2"
    },
    {
      "name": "rsync",
      "status": "vulnerable",
      "release": "trixie",
      "version": "3.4.1+ds1-5+deb13u4"
    },
    {
      "name": "rsync",
      "status": "fixed",
      "release": "trixie-security",
      "version": "3.5.0+ds1-0+deb13u1"
    },
    {
      "name": "rsync",
      "status": "vulnerable",
      "release": "bookworm",
      "version": "3.2.7-1+deb12u6"
    },
    {
      "name": "rsync",
      "status": "vulnerable",
      "release": "bookworm-security",
      "version": "3.2.7-1+deb12u5"
    }
  ],
  "fixed_versions": [
    {
      "bug": null,
      "name": "rsync",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": "3.5.0+ds1-1"
    },
    {
      "bug": null,
      "name": "rsync",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": "3.5.0+ds1-1"
    },
    {
      "bug": null,
      "name": "rsync",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": "3.5.0+ds1-0+deb13u1"
    },
    {
      "bug": null,
      "name": "rsync",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": ""
    }
  ],
  "distribution_packages": [
    {
      "name": "rsync",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.5.0-r0"
            }
          ]
        }
      ],
      "release": "3.21",
      "versions": [],
      "ecosystem": "apk",
      "fixed_version": "3.5.0-r0",
      "provider_record_id": "ALPINE-CVE-2026-70462"
    },
    {
      "name": "rsync",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.5.0-r0"
            }
          ]
        }
      ],
      "release": "3.22",
      "versions": [],
      "ecosystem": "apk",
      "fixed_version": "3.5.0-r0",
      "provider_record_id": "ALPINE-CVE-2026-70462"
    },
    {
      "name": "rsync",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.5.0-r0"
            }
          ]
        }
      ],
      "release": "3.23",
      "versions": [],
      "ecosystem": "apk",
      "fixed_version": "3.5.0-r0",
      "provider_record_id": "ALPINE-CVE-2026-70462"
    },
    {
      "name": "rsync",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.5.0-r0"
            }
          ]
        }
      ],
      "release": "3.24",
      "versions": [],
      "ecosystem": "apk",
      "fixed_version": "3.5.0-r0",
      "provider_record_id": "ALPINE-CVE-2026-70462"
    }
  ]
}

OpenFactory catalog packages

A associação de pacotes está em andamento.

[Debian 12 (Bookworm)]

[rsync]Desconhecido
Detalhes (4)
- 3.2.7-1+deb12u6 · amd64 · bookworm
  Afetada
  nvd · rsync · debian · bookworm; nvd · rsync · debian · 12
- 3.2.7-1+deb12u6 · arm64 · bookworm
  Afetada
  nvd · rsync · debian · bookworm; nvd · rsync · debian · 12
- 3.2.7-1+deb12u5 · amd64 · bookworm-security
  Afetada
  nvd · rsync · debian · bookworm; nvd · rsync · debian · 12
- 3.2.7-1+deb12u5 · arm64 · bookworm-security
  Afetada
  nvd · rsync · debian · bookworm; nvd · rsync · debian · 12

[Debian 13 (Trixie)]

[rsync]Desconhecido
Detalhes (5)
- 3.4.1+ds1-5+deb13u4 · amd64 · trixie
  Afetada · Corrigida: 3.5.0+ds1-0+deb13u1
  nvd · rsync · debian · 13
- 3.4.1+ds1-5+deb13u4 · arm64 · trixie
  Afetada · Corrigida: 3.5.0+ds1-0+deb13u1
  nvd · rsync · debian · 13
- 3.4.1+ds1-5+deb13u3 · amd64 · trixie-security · Historical version
  Afetada · Corrigida: 3.5.0+ds1-0+deb13u1
  nvd · rsync · debian · 13
- 3.4.1+ds1-5+deb13u3 · arm64 · trixie-security
  Afetada · Corrigida: 3.5.0+ds1-0+deb13u1
  nvd · rsync · debian · 13
- 3.5.0+ds1-0+deb13u1 · amd64 · trixie-security
  Corrigida · Corrigida: 3.5.0+ds1-0+deb13u1
  nvd · rsync · debian · 13

Observado: Oct 27, 2026, 7:10:09 AM UTC

Referências

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]