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DEBIAN-CVE-2026-48125

Type: advisorySource: OSV1 source record

UAParser.js is a JavaScript library to detect browsers, operating systems, CPUs, and devices from user-agent data. From 2.0.1 until 2.0.10, a regular expression denial-of-service vulnerability exists when using the Client Hints API. By sending a crafted Sec-CH-UA-Model header to an application that calls UAParser(headers).withClientHints(), an attacker can cause excessive CPU time due to catastrophic backtracking in the device regex because Client Hints values are copied without the UA_MAX_LENGTH limit used for User-Agent values. This issue is fixed in version 2.0.10.

Announced Group revision 1
Original source ↗

DEBIAN-CVE-2026-48125

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-2026-48125

node-ua-parser-js

Source reference: /affected/0/package/name

Affected versions
0.8.1+ds+~0.7.36-3

Source reference: /affected/0/versions

2.0.10+ds+~cs0.3.5-1

Source reference: /affected/0/versions

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

node-ua-parser-js

Source reference: /affected/1/package/name

Affected versions
0.8.1+ds+~0.7.36-3

Source reference: /affected/1/versions

2.0.10+ds+~cs0.3.5-1

Source reference: /affected/1/versions

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

node-ua-parser-js

Source reference: /affected/2/package/name

Affected versions
0.8.1+ds+~0.7.36-3

Source reference: /affected/2/versions

Fixed versions
2.0.10+ds+~cs0.3.5-1

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-ua-parser-js",
      "purl": "pkg:deb/debian/node-ua-parser-js?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "0.8.1+ds+~0.7.36-3",
      "2.0.10+ds+~cs0.3.5-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48125.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "node-ua-parser-js",
      "purl": "pkg:deb/debian/node-ua-parser-js?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "0.8.1+ds+~0.7.36-3",
      "2.0.10+ds+~cs0.3.5-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48125.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2.0.10+ds+~cs0.3.5-1"
          }
        ]
      }
    ],
    "package": {
      "name": "node-ua-parser-js",
      "purl": "pkg:deb/debian/node-ua-parser-js?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "0.8.1+ds+~0.7.36-3"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48125.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#56585 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. DEBIAN-CVE-2026-48125 · Revision 1Source updated