DEBIAN-CVE-2026-18446

Source
https://security-tracker.debian.org/tracker/CVE-2026-18446
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18446.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-18446
Upstream
Published
2026-07-31T15:16:27Z
Modified
2026-09-14T17:02:50Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
[none]
Details

fast-uri before 4.1.2, 3.1.5, and 2.4.4 requires a literal double forward slash to recognize a URI authority, so a reference that uses a backslash based introducer in place of it (backslash backslash, forward slash backslash, or backslash forward slash) is parsed with no authority and folds into the path. Node's native WHATWG URL parser instead treats a backslash as interchangeable with a forward slash for special schemes, so the two parsers extract different hosts from the same input. Applications that use fast-uri to enforce host based policy such as allowlists, SSRF filtering, or redirect validation before passing the same URL into Node's URL or fetch consumers can be steered to an unintended host. Upgrade to fast-uri 4.1.2, 3.1.5, or 2.4.4.

References

Affected packages

Debian:13 / node-ajv

Package

Name
node-ajv
Purl
pkg:deb/debian/node-ajv?arch=source&distro=trixie

Affected ranges

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

Affected versions

8.*
8.12.0~ds+~2.1.1-5
8.17.1~ds+~3.0.1+~3.1.0-1
8.17.1~ds+~3.0.1+~3.1.0-2
8.17.1~ds+~3.0.1+~3.1.0-3
8.17.1~ds+~3.0.1+~3.1.0-4
8.18.0~ds+~cs6.1.1-1
8.18.0~ds+~cs6.1.1-2
8.20.0~ds+~cs6.1.3-1
8.20.0~ds+~cs7.1.2-1
8.20.0~ds+~cs7.1.3-1
8.20.0~ds+~cs7.1.3-2
8.20.0~ds+~cs7.1.3-3
8.20.0~ds+~cs7.1.4-1
8.20.0~ds+~cs7.1.5-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18446.json"

Debian:14 / node-ajv

Package

Name
node-ajv
Purl
pkg:deb/debian/node-ajv?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
8.20.0~ds+~cs7.1.3-1

Affected versions

8.*
8.12.0~ds+~2.1.1-5
8.17.1~ds+~3.0.1+~3.1.0-1
8.17.1~ds+~3.0.1+~3.1.0-2
8.17.1~ds+~3.0.1+~3.1.0-3
8.17.1~ds+~3.0.1+~3.1.0-4
8.18.0~ds+~cs6.1.1-1
8.18.0~ds+~cs6.1.1-2
8.20.0~ds+~cs6.1.3-1
8.20.0~ds+~cs7.1.2-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18446.json"