UnratedFix available

DEBIAN-CVE-2026-53655

Type: advisorySource: OSV1 source record

node-tar is a full-featured Tar for Node.js. Prior to 7.5.16, tar (node-tar) applies a PAX extended header's size= record (and other PAX overrides) to the next header entry of any type, including intermediary metadata headers such as a GNU long-name (L) or long-link (K) entry. Per POSIX pax, a PAX extended header (x) describes the next file entry, not the intermediary extension headers that may sit between the x header and the file it annotates. Because node-tar lets the PAX size override the byte length of an intervening L/K/x header, an attacker can desynchronize node-tar's stream cursor relative to every other mainstream tar implementation (GNU tar, libarchive/bsdtar, Python tarfile, and the now-fixed tar-rs / astral-tokio-tar). The result is a tar parser interpretation differential (CWE-436): a single crafted archive yields a different set of members under node-tar than under the reference tar tools. An attacker can use this to hide a member from one parser while it is visible to another, which defeats security tooling whose scanner and extractor disagree on archive contents (e.g. a malware/secret scanner that lists entries with one library while a downstream step extracts with another) This vulnerability is fixed in 7.5.16.

Announced 22 Jun 2026Source revision 1

Original source ↗

DEBIAN-CVE-2026-53655

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:DEBIAN-CVE-2026-53655

node-tar

Source reference: /affected/0/package/name

Affected versions: 6.1.13+~cs7.0.5-1
Source reference: /affected/0/versions
6.1.13+~cs7.0.5-1+deb12u1
Source reference: /affected/0/versions
6.1.13+~cs7.0.5-2
Source reference: /affected/0/versions
6.1.13+~cs7.0.5-3
Source reference: /affected/0/versions
6.1.13+~cs7.0.5-4
Source reference: /affected/0/versions
6.2.1+ds1+~cs6.1.13-1
Source reference: /affected/0/versions
6.2.1+ds1+~cs6.1.13-10
Source reference: /affected/0/versions
6.2.1+ds1+~cs6.1.13-11
Source reference: /affected/0/versions
6.2.1+ds1+~cs6.1.13-2
Source reference: /affected/0/versions
6.2.1+ds1+~cs6.1.13-3
Source reference: /affected/0/versions
6.2.1+ds1+~cs6.1.13-4
Source reference: /affected/0/versions
6.2.1+ds1+~cs6.1.13-5
Source reference: /affected/0/versions
6.2.1+ds1+~cs6.1.13-6
Source reference: /affected/0/versions
6.2.1+ds1+~cs6.1.13-7
Source reference: /affected/0/versions
6.2.1+ds1+~cs6.1.13-8
Source reference: /affected/0/versions
6.2.1+ds1+~cs6.1.13-9
Source reference: /affected/0/versions
6.2.1+~cs7.0.8-1
Source reference: /affected/0/versions
7.5.16+~4.0.1-1
Source reference: /affected/0/versions
7.5.16+~4.0.1-2
Source reference: /affected/0/versions
7.5.19+~4.0.1-1
Source reference: /affected/0/versions
7.5.19+~4.0.1-2
Source reference: /affected/0/versions
7.5.22+~4.0.1-1
Source reference: /affected/0/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

node-tar

Source reference: /affected/1/package/name

Affected versions: 6.2.1+ds1+~cs6.1.13-1
Source reference: /affected/1/versions
6.2.1+ds1+~cs6.1.13-10
Source reference: /affected/1/versions
6.2.1+ds1+~cs6.1.13-11
Source reference: /affected/1/versions
6.2.1+ds1+~cs6.1.13-2
Source reference: /affected/1/versions
6.2.1+ds1+~cs6.1.13-3
Source reference: /affected/1/versions
6.2.1+ds1+~cs6.1.13-4
Source reference: /affected/1/versions
6.2.1+ds1+~cs6.1.13-5
Source reference: /affected/1/versions
6.2.1+ds1+~cs6.1.13-6
Source reference: /affected/1/versions
6.2.1+ds1+~cs6.1.13-7
Source reference: /affected/1/versions
6.2.1+ds1+~cs6.1.13-8
Source reference: /affected/1/versions
6.2.1+ds1+~cs6.1.13-9
Source reference: /affected/1/versions
6.2.1+~cs7.0.8-1
Source reference: /affected/1/versions
6.2.1+~cs7.0.8-1+deb13u1
Source reference: /affected/1/versions
7.5.16+~4.0.1-1
Source reference: /affected/1/versions
7.5.16+~4.0.1-2
Source reference: /affected/1/versions
7.5.19+~4.0.1-1
Source reference: /affected/1/versions
7.5.19+~4.0.1-2
Source reference: /affected/1/versions
7.5.22+~4.0.1-1
Source reference: /affected/1/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

node-tar

Source reference: /affected/2/package/name

Affected versions: 6.2.1+ds1+~cs6.1.13-1
Source reference: /affected/2/versions
6.2.1+ds1+~cs6.1.13-10
Source reference: /affected/2/versions
6.2.1+ds1+~cs6.1.13-11
Source reference: /affected/2/versions
6.2.1+ds1+~cs6.1.13-2
Source reference: /affected/2/versions
6.2.1+ds1+~cs6.1.13-3
Source reference: /affected/2/versions
6.2.1+ds1+~cs6.1.13-4
Source reference: /affected/2/versions
6.2.1+ds1+~cs6.1.13-5
Source reference: /affected/2/versions
6.2.1+ds1+~cs6.1.13-6
Source reference: /affected/2/versions
6.2.1+ds1+~cs6.1.13-7
Source reference: /affected/2/versions
6.2.1+ds1+~cs6.1.13-8
Source reference: /affected/2/versions
6.2.1+ds1+~cs6.1.13-9
Source reference: /affected/2/versions
6.2.1+~cs7.0.8-1
Source reference: /affected/2/versions
7.5.16+~4.0.1-1
Source reference: /affected/2/versions
Fixed versions: 7.5.16+~4.0.1-2
Source reference: /affected/2/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"
          }
        ]
      }
    ],
    "package": {
      "name": "node-tar",
      "purl": "pkg:deb/debian/node-tar?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "6.1.13+~cs7.0.5-1",
      "6.1.13+~cs7.0.5-1+deb12u1",
      "6.1.13+~cs7.0.5-2",
      "6.1.13+~cs7.0.5-3",
      "6.1.13+~cs7.0.5-4",
      "6.2.1+ds1+~cs6.1.13-1",
      "6.2.1+ds1+~cs6.1.13-10",
      "6.2.1+ds1+~cs6.1.13-11",
      "6.2.1+ds1+~cs6.1.13-2",
      "6.2.1+ds1+~cs6.1.13-3",
      "6.2.1+ds1+~cs6.1.13-4",
      "6.2.1+ds1+~cs6.1.13-5",
      "6.2.1+ds1+~cs6.1.13-6",
      "6.2.1+ds1+~cs6.1.13-7",
      "6.2.1+ds1+~cs6.1.13-8",
      "6.2.1+ds1+~cs6.1.13-9",
      "6.2.1+~cs7.0.8-1",
      "7.5.16+~4.0.1-1",
      "7.5.16+~4.0.1-2",
      "7.5.19+~4.0.1-1",
      "7.5.19+~4.0.1-2",
      "7.5.22+~4.0.1-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-53655.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "node-tar",
      "purl": "pkg:deb/debian/node-tar?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "6.2.1+ds1+~cs6.1.13-1",
      "6.2.1+ds1+~cs6.1.13-10",
      "6.2.1+ds1+~cs6.1.13-11",
      "6.2.1+ds1+~cs6.1.13-2",
      "6.2.1+ds1+~cs6.1.13-3",
      "6.2.1+ds1+~cs6.1.13-4",
      "6.2.1+ds1+~cs6.1.13-5",
      "6.2.1+ds1+~cs6.1.13-6",
      "6.2.1+ds1+~cs6.1.13-7",
      "6.2.1+ds1+~cs6.1.13-8",
      "6.2.1+ds1+~cs6.1.13-9",
      "6.2.1+~cs7.0.8-1",
      "6.2.1+~cs7.0.8-1+deb13u1",
      "7.5.16+~4.0.1-1",
      "7.5.16+~4.0.1-2",
      "7.5.19+~4.0.1-1",
      "7.5.19+~4.0.1-2",
      "7.5.22+~4.0.1-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-53655.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "7.5.16+~4.0.1-2"
          }
        ]
      }
    ],
    "package": {
      "name": "node-tar",
      "purl": "pkg:deb/debian/node-tar?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "6.2.1+ds1+~cs6.1.13-1",
      "6.2.1+ds1+~cs6.1.13-10",
      "6.2.1+ds1+~cs6.1.13-11",
      "6.2.1+ds1+~cs6.1.13-2",
      "6.2.1+ds1+~cs6.1.13-3",
      "6.2.1+ds1+~cs6.1.13-4",
      "6.2.1+ds1+~cs6.1.13-5",
      "6.2.1+ds1+~cs6.1.13-6",
      "6.2.1+ds1+~cs6.1.13-7",
      "6.2.1+ds1+~cs6.1.13-8",
      "6.2.1+ds1+~cs6.1.13-9",
      "6.2.1+~cs7.0.8-1",
      "7.5.16+~4.0.1-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-53655.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event: #57313 · Revision 1
Added to Heist Feed: Sun, 25 Oct 2026 17:10:30 GMT
Publisher date: Mon, 22 Jun 2026 16:16:38 GMT

Read the original announcement