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DEBIAN-CVE-2026-29063

Type: advisorySource: OSV1 source record

Immutable.js provides many Persistent Immutable data structures. Prior to versions 3.8.3, 4.3.7, and 5.1.5, Prototype Pollution is possible in immutable via the mergeDeep(), mergeDeepWith(), merge(), Map.toJS(), and Map.toObject() APIs. This issue has been patched in versions 3.8.3, 4.3.7, and 5.1.5.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-29063

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-2026-29063

node-immutable

Source reference: /affected/0/package/name

Affected versions
4.1.0-3

Source reference: /affected/0/versions

4.3.4-1

Source reference: /affected/0/versions

4.3.8-1

Source reference: /affected/0/versions

4.3.8-2

Source reference: /affected/0/versions

4.3.9-1

Source reference: /affected/0/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

node-immutable

Source reference: /affected/1/package/name

Affected versions
4.3.4-1

Source reference: /affected/1/versions

4.3.8-1

Source reference: /affected/1/versions

4.3.8-2

Source reference: /affected/1/versions

4.3.9-1

Source reference: /affected/1/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

node-immutable

Source reference: /affected/2/package/name

Affected versions
4.3.4-1

Source reference: /affected/2/versions

Fixed versions
4.3.8-1

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-immutable",
      "purl": "pkg:deb/debian/node-immutable?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "4.1.0-3",
      "4.3.4-1",
      "4.3.8-1",
      "4.3.8-2",
      "4.3.9-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-29063.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "node-immutable",
      "purl": "pkg:deb/debian/node-immutable?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "4.3.4-1",
      "4.3.8-1",
      "4.3.8-2",
      "4.3.9-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-29063.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "4.3.8-1"
          }
        ]
      }
    ],
    "package": {
      "name": "node-immutable",
      "purl": "pkg:deb/debian/node-immutable?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "4.3.4-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-29063.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#56731 · Revision 1
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Publisher date
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