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ALPINE-CVE-2026-70456

Type: advisorySource: OSV1 source record

rsync 3.0.1 before 3.5.0 contains an out-of-bounds write vulnerability in the read_args() function that allows a malicious sender to corrupt adjacent heap memory by sending a crafted argument list. When the argument count causes the argv allocation to be exactly full, the trailing NULL terminator is written one slot beyond the allocation boundary, corrupting adjacent heap memory.

Announced Source revision 1
Original source ↗

ALPINE-CVE-2026-70456

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:ALPINE-CVE-2026-70456

rsync

Source reference: /affected/0/package/name

Affected versions
Not stated in this record
Fixed versions
3.5.0-r0

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

rsync

Source reference: /affected/1/package/name

Affected versions
Not stated in this record
Fixed versions
3.5.0-r0

Source reference: /affected/1/ranges

Prerequisites
Not stated in this record

rsync

Source reference: /affected/2/package/name

Affected versions
Not stated in this record
Fixed versions
3.5.0-r0

Source reference: /affected/2/ranges

Prerequisites
Not stated in this record

rsync

Source reference: /affected/3/package/name

Affected versions
Not stated in this record
Fixed versions
3.5.0-r0

Source reference: /affected/3/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "3.5.0-r0"
          }
        ]
      }
    ],
    "package": {
      "name": "rsync",
      "purl": "pkg:apk/alpine/rsync?arch=source",
      "ecosystem": "Alpine:v3.21"
    },
    "database_specific": {
      "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-70456.json"
    },
    "ecosystem_specific": {}
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "3.5.0-r0"
          }
        ]
      }
    ],
    "package": {
      "name": "rsync",
      "purl": "pkg:apk/alpine/rsync?arch=source",
      "ecosystem": "Alpine:v3.22"
    },
    "database_specific": {
      "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-70456.json"
    },
    "ecosystem_specific": {}
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "3.5.0-r0"
          }
        ]
      }
    ],
    "package": {
      "name": "rsync",
      "purl": "pkg:apk/alpine/rsync?arch=source",
      "ecosystem": "Alpine:v3.23"
    },
    "database_specific": {
      "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-70456.json"
    },
    "ecosystem_specific": {}
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "3.5.0-r0"
          }
        ]
      }
    ],
    "package": {
      "name": "rsync",
      "purl": "pkg:apk/alpine/rsync?arch=source",
      "ecosystem": "Alpine:v3.24"
    },
    "database_specific": {
      "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-70456.json"
    },
    "ecosystem_specific": {}
  }
]

Publisher severity

No explicit severity was provided.

Event
#55142 · Revision 1
Added to Heist Feed
Publisher date
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