UBUNTU-CVE-2026-48801

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2026-48801
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48801.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-48801
Upstream
Published
2026-07-14T21:17:00Z
Modified
2026-07-15T19:45:30.634474734Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

linkify-it is a links recognition library with full Unicode support. Prior to 5.0.1, LinkifyIt.prototype.match, the package's primary public API, has O(N²) algorithmic complexity for inputs containing many fuzzy links or emails because the JavaScript-level scan loop re-slices input and re-runs unanchored regex searches on progressively shorter tails. Any service that synchronously renders untrusted Markdown with linkify:true on a request hot path can inherit a worker-process denial of service triggerable by a tens-of-KB request body. This issue is fixed in version 5.0.1.

References

Affected packages

Ubuntu:22.04:LTS / node-markdown-it

Package

Name
node-markdown-it
Purl
pkg:deb/ubuntu/node-markdown-it?arch=source&distro=jammy

Affected ranges

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

Affected versions

10.*
10.0.0+dfsg-2
10.0.0+dfsg-3
10.0.0+dfsg-3.1
10.0.0+dfsg-4
10.0.0+dfsg-5
10.0.0+dfsg-6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "10.0.0+dfsg-6",
            "binary_name": "node-markdown-it"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48801.json"

Ubuntu:24.04:LTS / node-markdown-it

Package

Name
node-markdown-it
Purl
pkg:deb/ubuntu/node-markdown-it?arch=source&distro=noble

Affected ranges

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

Affected versions

22.*
22.2.3+dfsg+~12.2.3-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "22.2.3+dfsg+~12.2.3-2",
            "binary_name": "node-markdown-it"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48801.json"

Ubuntu:26.04:LTS / node-markdown-it

Package

Name
node-markdown-it
Purl
pkg:deb/ubuntu/node-markdown-it?arch=source&distro=resolute

Affected ranges

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

Affected versions

22.*
22.2.3+dfsg+~12.2.3-2
22.2.3+dfsg+~12.2.3-4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "22.2.3+dfsg+~12.2.3-4",
            "binary_name": "node-markdown-it"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48801.json"