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DEBIAN-CVE-2026-88362

Type: advisorySource: OSV1 source record

MuJS e892c9fdb contains an incorrect numeric conversion vulnerability in jsR_isindex() in jsrun.c. A specially crafted JavaScript input containing an excessively large numeric array index can cause an out-of-range floating-point value to be converted to an integer without proper range validation. This results in undefined behavior and can cause process termination, leading to denial of service.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-88362

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-2026-88362

mujs

Source reference: /affected/0/package/name

Affected versions
1.3.10-1

Source reference: /affected/0/versions

1.3.10-2

Source reference: /affected/0/versions

1.3.2-1

Source reference: /affected/0/versions

1.3.3-1

Source reference: /affected/0/versions

1.3.3-2

Source reference: /affected/0/versions

1.3.3-3

Source reference: /affected/0/versions

1.3.5-1

Source reference: /affected/0/versions

1.3.6-1

Source reference: /affected/0/versions

1.3.7-1

Source reference: /affected/0/versions

1.3.8-1

Source reference: /affected/0/versions

1.3.8-2

Source reference: /affected/0/versions

1.3.9-1

Source reference: /affected/0/versions

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

mujs

Source reference: /affected/1/package/name

Affected versions
1.3.10-1

Source reference: /affected/1/versions

1.3.10-2

Source reference: /affected/1/versions

1.3.6-1

Source reference: /affected/1/versions

1.3.7-1

Source reference: /affected/1/versions

1.3.8-1

Source reference: /affected/1/versions

1.3.8-2

Source reference: /affected/1/versions

1.3.9-1

Source reference: /affected/1/versions

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

mujs

Source reference: /affected/2/package/name

Affected versions
1.3.10-1

Source reference: /affected/2/versions

1.3.6-1

Source reference: /affected/2/versions

1.3.7-1

Source reference: /affected/2/versions

1.3.8-1

Source reference: /affected/2/versions

1.3.8-2

Source reference: /affected/2/versions

1.3.9-1

Source reference: /affected/2/versions

Fixed versions
1.3.10-2

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": "mujs",
      "purl": "pkg:deb/debian/mujs?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "1.3.10-1",
      "1.3.10-2",
      "1.3.2-1",
      "1.3.3-1",
      "1.3.3-2",
      "1.3.3-3",
      "1.3.5-1",
      "1.3.6-1",
      "1.3.7-1",
      "1.3.8-1",
      "1.3.8-2",
      "1.3.9-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-88362.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "mujs",
      "purl": "pkg:deb/debian/mujs?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "1.3.10-1",
      "1.3.10-2",
      "1.3.6-1",
      "1.3.7-1",
      "1.3.8-1",
      "1.3.8-2",
      "1.3.9-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-88362.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "1.3.10-2"
          }
        ]
      }
    ],
    "package": {
      "name": "mujs",
      "purl": "pkg:deb/debian/mujs?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "1.3.10-1",
      "1.3.6-1",
      "1.3.7-1",
      "1.3.8-1",
      "1.3.8-2",
      "1.3.9-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-88362.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#65339 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement