DEBIAN-CVE-2026-85024

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Source
https://security-tracker.debian.org/tracker/CVE-2026-85024
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-85024.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2026-85024
Upstream
Published
2026-09-04T17:17:02Z
Modified
2026-09-17T08:47:26Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

undici bundles a WebSocket client whose permessage-deflate size-limit cleanup removes all listeners from the internal zlib inflate stream, including its error listener, while that stream can still emit. When a remote peer sends a compressed payload that crosses the built-in 128 MiB decompressed-payload limit and then contains a malformed DEFLATE byte, the inflate stream emits a data error with no listener attached, which Node.js treats as a fatal unhandled error and terminates the entire process. Exploitation is remote and unauthenticated, requires no application mistake, and is asymmetric, since roughly 130 KB on the wire expands past the limit and crashes the process, and reconnecting can repeat the crash. This affects undici versions from 6.25.0 up to 6.28.1, from 7.28.0 up to 7.29.1, and from 8.1.0 up to 8.10.2. Users should upgrade to undici 6.28.1, 7.29.1, or 8.10.2.

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
8.10.2+dfsg+~cs3.2.2-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-85024.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
8.10.2+dfsg+~cs3.2.2-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-85024.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
8.10.2+dfsg+~cs3.2.2-1

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
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-2026-85024.json"