DEBIAN-CVE-2026-16729

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Source
https://security-tracker.debian.org/tracker/CVE-2026-16729
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-16729.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2026-16729
Upstream
Published
2026-07-29T17:16:51Z
Modified
2026-08-27T23:05:53Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
Summary
[none]
Details

undici's setCookie function does not fully sanitize cookie attributes. In undici before 6.28.0, from 7.0.0 up to before 7.29.0, and from 8.0.0 up to before 8.9.0, a domain value is not checked for semicolons and entries in the unparsed array are not sanitized, so attacker-influenced input can inject additional cookie attributes. For example, a domain value containing a semicolon can append attributes such as SameSite, and an unparsed entry can inject attributes such as HttpOnly, without the caller setting them. Applications that pass user-controlled input to these fields, such as multi-tenant or reverse-proxy servers that scope session cookies to a tenant-supplied domain, can have SameSite CSRF protections bypassed, or the Secure, HttpOnly, and SameSite attributes forced, stripped, or overridden. The issue is fixed in undici 6.28.0, 7.29.0, and 8.9.0.

References

Affected packages

Debian:12 / node-undici

Package

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

Affected ranges

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

Affected versions

5.*
5.15.0+dfsg1+~cs20.10.9.3-1
5.15.0+dfsg1+~cs20.10.9.3-1+deb12u1
5.15.0+dfsg1+~cs20.10.9.3-1+deb12u2
5.15.0+dfsg1+~cs20.10.9.3-1+deb12u3
5.15.0+dfsg1+~cs20.10.9.3-1+deb12u4
5.19.1+dfsg1+~cs20.10.9.5-1
5.19.1+dfsg1+~cs20.10.9.5-2
5.22.1+dfsg1+~cs20.10.10.2-1
5.26.3+dfsg1+~cs23.10.12-1
5.26.3+dfsg1+~cs23.10.12-2
5.26.3+dfsg1+~cs23.10.12-3
5.28.0+dfsg1+~cs23.11.12.3-1
5.28.0+dfsg1+~cs23.11.12.3-2
5.28.2+dfsg1+~cs23.11.12.3-1
5.28.2+dfsg1+~cs23.11.12.3-2
5.28.2+dfsg1+~cs23.11.12.3-3
5.28.2+dfsg1+~cs23.11.12.3-4
5.28.2+dfsg1+~cs23.11.12.3-5
5.28.2+dfsg1+~cs23.11.12.3-6
5.28.4+dfsg1+~cs23.12.11-1
5.28.4+dfsg1+~cs23.12.11-2
7.*
7.1.0+dfsg1+~cs24.12.10-1
7.2.3+dfsg1+~cs24.12.11-1
7.2.3+dfsg1+~cs24.12.11-2
7.3.0+dfsg1+~cs24.12.11-1
7.3.0+dfsg1+~cs24.12.11-2
7.15.0+dfsg+~cs3.2.0-1
7.15.0+dfsg+~cs3.2.0-3
7.16.0+dfsg+~cs3.2.0-1
7.16.0+dfsg+~cs3.2.0-2
7.18.2+dfsg+~cs3.2.0-1
7.24.5+dfsg+~cs3.2.0-1
7.24.6+dfsg+~cs3.2.0-1
7.24.6+dfsg+~cs3.2.0-2
7.24.6+dfsg+~cs3.2.0-3
8.*
8.5.0+dfsg+~cs3.2.0-1
8.5.0+dfsg+~cs3.2.0-2
8.5.0+dfsg+~cs3.2.0-3
8.9.0+dfsg+~cs3.2.0-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-16729.json"

Debian:13 / node-undici

Package

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

Affected ranges

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

Affected versions

7.*
7.3.0+dfsg1+~cs24.12.11-1
7.3.0+dfsg1+~cs24.12.11-2
7.15.0+dfsg+~cs3.2.0-1
7.15.0+dfsg+~cs3.2.0-3
7.16.0+dfsg+~cs3.2.0-1
7.16.0+dfsg+~cs3.2.0-2
7.18.2+dfsg+~cs3.2.0-1
7.24.5+dfsg+~cs3.2.0-1
7.24.6+dfsg+~cs3.2.0-1
7.24.6+dfsg+~cs3.2.0-2
7.24.6+dfsg+~cs3.2.0-3
8.*
8.5.0+dfsg+~cs3.2.0-1
8.5.0+dfsg+~cs3.2.0-2
8.5.0+dfsg+~cs3.2.0-3
8.9.0+dfsg+~cs3.2.0-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-16729.json"

Debian:14 / node-undici

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
8.9.0+dfsg+~cs3.2.0-1

Affected versions

7.*
7.3.0+dfsg1+~cs24.12.11-1
7.3.0+dfsg1+~cs24.12.11-2
7.15.0+dfsg+~cs3.2.0-1
7.15.0+dfsg+~cs3.2.0-3
7.16.0+dfsg+~cs3.2.0-1
7.16.0+dfsg+~cs3.2.0-2
7.18.2+dfsg+~cs3.2.0-1
7.24.5+dfsg+~cs3.2.0-1
7.24.6+dfsg+~cs3.2.0-1
7.24.6+dfsg+~cs3.2.0-2
7.24.6+dfsg+~cs3.2.0-3
8.*
8.5.0+dfsg+~cs3.2.0-1
8.5.0+dfsg+~cs3.2.0-2
8.5.0+dfsg+~cs3.2.0-3

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-16729.json"