DEBIAN-CVE-2026-1527

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Source

https://security-tracker.debian.org/tracker/CVE-2026-1527

Import Source

https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-1527.json

JSON Data

https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-1527

Upstream

CVE-2026-1527

Published

2026-03-12T21:16:25Z

Modified

2026-09-14T17:02:46Z

Severity

4.6 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N CVSS Calculator

Summary

[none]

Details

ImpactWhen an application passes user-controlled input to the upgrade option of client.request(), an attacker can inject CRLF sequences (\r\n) to: * Inject arbitrary HTTP headers * Terminate the HTTP request prematurely and smuggle raw data to non-HTTP services (Redis, Memcached, Elasticsearch) The vulnerability exists because undici writes the upgrade value directly to the socket without validating for invalid header characters: // lib/dispatcher/client-h1.js:1121 if (upgrade) { header += connection: upgrade\r\nupgrade: ${upgrade}\r\n }

References

https://security-tracker.debian.org/tracker/CVE-2026-1527

Affected packages

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

8.10.2+dfsg+~cs3.2.2-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-1527.json"

Debian:14 / node-undici