DEBIAN-CVE-2026-121727

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Source
https://security-tracker.debian.org/tracker/CVE-2026-121727
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-121727.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-121727
Upstream
Published
2026-11-03T23:17:36Z
Modified
2026-11-06T19:00:06Z
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

Kore before 4.3.0 contains an integer underflow vulnerability in HTTP request body handling that allows unauthenticated attackers to bypass http_body_max by sending more body bytes than declared. Attackers can send oversized first segments over many concurrent POST, PUT or DELETE connections, wrapping content_length to grow buffers unbounded and exhaust worker memory.

References

Affected packages

Debian:12 / kore

Package

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

Affected ranges

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

Affected versions

4.*
4.1.0-6
4.2.3-1
4.2.3-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-121727.json"

Debian:14 / kore

Package

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

Affected ranges

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

Affected versions

1.*
1.2.3-1
1.2.3-2
1.2.3-3
1.2.3-4
1.2.3-5
2.*
2.0.0-1
2.0.0-2
2.0.0-3
2.0.0-4
3.*
3.3.1-1
4.*
4.0.1-1
4.0.1-2
4.0.1-3
4.0.1-4
4.0.1-5
4.1.0-1
4.1.0-2
4.1.0-3
4.1.0-4
4.1.0-5
4.1.0-6
4.2.3-1
4.2.3-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-121727.json"