DEBIAN-CVE-2026-21710

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Source
https://security-tracker.debian.org/tracker/CVE-2026-21710
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-21710.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2026-21710
Upstream
Published
2026-03-30T20:16:18Z
Modified
2026-08-27T23:05:46Z
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
Summary
[none]
Details

A flaw in Node.js HTTP request handling causes an uncaught TypeError when a request is received with a header named __proto__ and the application accesses req.headersDistinct. When this occurs, dest["__proto__"] resolves to Object.prototype rather than undefined, causing .push() to be called on a non-array. This exception is thrown synchronously inside a property getter and cannot be intercepted by error event listeners, meaning it cannot be handled without wrapping every req.headersDistinct access in a try/catch. * This vulnerability affects all Node.js HTTP servers on 20.x, 22.x, 24.x, and v25.x

References

Affected packages

Debian:12 / nodejs

Package

Name
nodejs
Purl
pkg:deb/debian/nodejs?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
18.20.4+dfsg-1~deb12u2

Affected versions

18.*
18.13.0+dfsg1-1
18.13.0+dfsg1-1.1
18.19.0+dfsg-1
18.19.0+dfsg-2
18.19.0+dfsg-3
18.19.0+dfsg-4
18.19.0+dfsg-5
18.19.0+dfsg-6~deb12u1
18.19.0+dfsg-6~deb12u2
18.19.0+dfsg-6
18.19.1+dfsg-1
18.19.1+dfsg-2
18.19.1+dfsg-3
18.19.1+dfsg-3.1
18.19.1+dfsg-4
18.19.1+dfsg-6
18.20.1+dfsg-1
18.20.1+dfsg-2
18.20.1+dfsg-3
18.20.1+dfsg-4
18.20.4+dfsg-1~deb12u1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-21710.json"

Debian:13 / nodejs

Package

Name
nodejs
Purl
pkg:deb/debian/nodejs?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
20.19.2+dfsg-1+deb13u2

Affected versions

20.*
20.19.2+dfsg-1
20.19.2+dfsg-1+deb13u1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-21710.json"

Debian:14 / nodejs

Package

Name
nodejs
Purl
pkg:deb/debian/nodejs?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
22.22.2+dfsg+~cs22.19.15-1

Affected versions

20.*
20.19.2+dfsg-1
20.19.4+dfsg-1
20.19.5+dfsg+~cs20.19.12-1
20.19.5+dfsg+~cs20.19.12-2
20.19.5+dfsg+~cs20.19.12-3
20.19.5+dfsg+~cs20.19.12-4
20.19.5+dfsg+~cs20.19.24-1
22.*
22.12.0+dfsg-1
22.12.0+dfsg-2
22.12.0+dfsg-3
22.14.0+dfsg-1
22.18.0+dfsg-1
22.18.0+dfsg+~cs22.17.2-1
22.18.0+dfsg+~cs22.17.2-2
22.19.0+dfsg+~cs22.18.0-1
22.21.1+dfsg+~cs22.19.0-1
22.21.1+dfsg+~cs22.19.0-2
22.21.1+dfsg+~cs22.19.0-3
22.21.1+dfsg+~cs22.19.0-4
22.21.1+dfsg+~cs22.19.0-5
22.21.1+dfsg+~cs22.19.0-6
22.22.0+dfsg+~cs22.19.6-1
22.22.0+dfsg+~cs22.19.13-1
22.22.0+dfsg+~cs22.19.13-2
22.22.1+dfsg+~cs22.19.15-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-21710.json"