UBUNTU-CVE-2026-88362

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Source
https://ubuntu.com/security/CVE-2026-88362
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88362.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-88362
Upstream
  • CVE-2026-88362
Published
2026-09-24T16:17:00Z
Modified
2026-10-17T13:01:15Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:Pro:22.04:LTS / mujs

Package

Name
mujs
Purl
pkg:deb/ubuntu/mujs?arch=source&distro=esm-apps%2Fjammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.1.0-1
1.1.3-2
1.1.3-3
1.1.3-3ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libmujs1",
            "binary_version":  "1.1.3-3ubuntu0.1~esm1"
        },
        {
            "binary_name":  "mujs",
            "binary_version":  "1.1.3-3ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88362.json"

Ubuntu:24.04:LTS / mujs

Package

Name
mujs
Purl
pkg:deb/ubuntu/mujs?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.3.3-1
1.3.3-2
1.3.3-3
1.3.3-3build1
1.3.3-3build2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libmujs3",
            "binary_version":  "1.3.3-3build2"
        },
        {
            "binary_name":  "mujs",
            "binary_version":  "1.3.3-3build2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88362.json"

Ubuntu:26.10 / mujs

Package

Name
mujs
Purl
pkg:deb/ubuntu/mujs?arch=source&distro=stonking

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.3.8-2
1.3.9-1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libmujs3",
            "binary_version":  "1.3.9-1"
        },
        {
            "binary_name":  "mujs",
            "binary_version":  "1.3.9-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88362.json"

Ubuntu:26.04:LTS / mujs

Package

Name
mujs
Purl
pkg:deb/ubuntu/mujs?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.3.6-1
1.3.8-2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libmujs3",
            "binary_version":  "1.3.8-2"
        },
        {
            "binary_name":  "mujs",
            "binary_version":  "1.3.8-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88362.json"