DEBIAN-CVE-2026-110306

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Source
https://security-tracker.debian.org/tracker/CVE-2026-110306
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-110306.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-110306
Upstream
Published
2026-10-20T07:17:08Z
Modified
2026-10-27T05:00:06Z
Severity
  • 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
Summary
[none]
Details

fast-uri is a dependency-free RFC 3986 URI parser and serializer for Node.js. In versions before 2.4.8, from 3.0.0 through 3.1.8, and from 4.0.0 through 4.2.2, fast-uri percent-decodes the scheme component with the legacy global unescape() function before validating it, so an input whose decoded scheme is a dangerous token is emitted as a live scheme even though RFC 3986 does not allow percent-encoding in a scheme and no other parser accepts it. An application that screens dangerous schemes on the raw input and then stores or renders the normalized or resolved result can turn an inert string into an executable javascript, data, or vbscript URL, producing a stored or reflected cross-site scripting vector, and the equal() comparison treats an encoded and a plain scheme as the same, which can bypass equality-based allowlists. The issue is fixed in fast-uri 2.4.8, 3.1.9, and 4.2.3, and users should upgrade to one of these versions or later. As a workaround, reject input whose scheme part contains a percent sign, or check the parsed scheme against an allowlist after normalization and use that same parsed result rather than the raw string.

References

Affected packages

Debian:12 / node-ajv

Package

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

Affected ranges

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

Affected versions

6.*
6.12.6-3
8.*
8.8.2~ds+~2.1.1-1
8.11.2~ds+~2.1.1-1
8.12.0~ds+~2.1.1-1
8.12.0~ds+~2.1.1-2
8.12.0~ds+~2.1.1-3
8.12.0~ds+~2.1.1-4
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
8.20.0~ds+~cs7.1.6-1
8.20.0~ds+~cs7.1.6-2
8.20.0~ds+~cs7.2.4-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-110306.json"

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
8.20.0~ds+~cs7.1.6-1
8.20.0~ds+~cs7.1.6-2
8.20.0~ds+~cs7.2.4-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-110306.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+~cs7.2.4-1

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
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
8.20.0~ds+~cs7.1.6-1
8.20.0~ds+~cs7.1.6-2

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-110306.json"