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DEBIAN-CVE-2026-12590

Type: advisorySource: OSV1 source record

Impact: In body-parser versions prior to 1.20.6 (1.x line) and 2.3.0 (2.x line), when the parser is configured with an invalid limit option value such as an unparseable string or NaN, bytes.parse returns null and the request body size check is silently skipped. Applications that rely on limit as their primary safeguard against oversized request bodies will accept arbitrarily large payloads, leading to excessive memory and CPU usage and denial of service. Patches: This issue is fixed in body-parser 1.20.6 and 2.3.0. After the fix, invalid limit values throw a clear error at parser construction time instead of silently disabling enforcement, while null and undefined continue to fall back to the default limit of 100kb. Workarounds: Validate the limit value before passing it to body-parser. For example, parse the value at startup and reject any configuration where the result is null or a non-finite number.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-12590

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-2026-12590

node-body-parser

Source reference: /affected/0/package/name

Affected versions
1.20.1+~1.19.2-1

Source reference: /affected/0/versions

1.20.2+~1.19.5-1

Source reference: /affected/0/versions

1.20.3+~1.19.5-1

Source reference: /affected/0/versions

1.20.3+~1.19.5-2

Source reference: /affected/0/versions

1.20.3+~1.19.5-3

Source reference: /affected/0/versions

2.2.0+~1.19.6-1

Source reference: /affected/0/versions

2.2.0+~1.19.6-2

Source reference: /affected/0/versions

2.2.0+~1.19.6-3

Source reference: /affected/0/versions

2.2.1+~1.19.6-1

Source reference: /affected/0/versions

2.2.2+~1.19.6-1

Source reference: /affected/0/versions

2.3.0+~1.19.6-1

Source reference: /affected/0/versions

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

node-body-parser

Source reference: /affected/1/package/name

Affected versions
1.20.3+~1.19.5-3

Source reference: /affected/1/versions

2.2.0+~1.19.6-1

Source reference: /affected/1/versions

2.2.0+~1.19.6-2

Source reference: /affected/1/versions

2.2.0+~1.19.6-3

Source reference: /affected/1/versions

2.2.1+~1.19.6-1

Source reference: /affected/1/versions

2.2.2+~1.19.6-1

Source reference: /affected/1/versions

2.3.0+~1.19.6-1

Source reference: /affected/1/versions

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

node-body-parser

Source reference: /affected/2/package/name

Affected versions
1.20.3+~1.19.5-3

Source reference: /affected/2/versions

2.2.0+~1.19.6-1

Source reference: /affected/2/versions

2.2.0+~1.19.6-2

Source reference: /affected/2/versions

2.2.0+~1.19.6-3

Source reference: /affected/2/versions

2.2.1+~1.19.6-1

Source reference: /affected/2/versions

2.2.2+~1.19.6-1

Source reference: /affected/2/versions

Fixed versions
2.3.0+~1.19.6-1

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-body-parser",
      "purl": "pkg:deb/debian/node-body-parser?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "1.20.1+~1.19.2-1",
      "1.20.2+~1.19.5-1",
      "1.20.3+~1.19.5-1",
      "1.20.3+~1.19.5-2",
      "1.20.3+~1.19.5-3",
      "2.2.0+~1.19.6-1",
      "2.2.0+~1.19.6-2",
      "2.2.0+~1.19.6-3",
      "2.2.1+~1.19.6-1",
      "2.2.2+~1.19.6-1",
      "2.3.0+~1.19.6-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-12590.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "node-body-parser",
      "purl": "pkg:deb/debian/node-body-parser?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "1.20.3+~1.19.5-3",
      "2.2.0+~1.19.6-1",
      "2.2.0+~1.19.6-2",
      "2.2.0+~1.19.6-3",
      "2.2.1+~1.19.6-1",
      "2.2.2+~1.19.6-1",
      "2.3.0+~1.19.6-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-12590.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2.3.0+~1.19.6-1"
          }
        ]
      }
    ],
    "package": {
      "name": "node-body-parser",
      "purl": "pkg:deb/debian/node-body-parser?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "1.20.3+~1.19.5-3",
      "2.2.0+~1.19.6-1",
      "2.2.0+~1.19.6-2",
      "2.2.0+~1.19.6-3",
      "2.2.1+~1.19.6-1",
      "2.2.2+~1.19.6-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-12590.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#55526 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement