DEBIAN-CVE-2026-125108

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Source
https://security-tracker.debian.org/tracker/CVE-2026-125108
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-125108.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-125108
Upstream
Published
2026-11-09T22:18:41Z
Modified
2026-11-10T13:00:06Z
Severity
  • 3.7 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
Summary
[none]
Details

Rack is a modular Ruby web server interface. Prior to 2.2.25, 3.1.23, and 3.2.8, Rack::Multipart::Parser.parse_boundary can skip a leading empty or quoted boundary parameter in a multipart Content-Type header and accept a later parameter. Rack can therefore parse a request body with a boundary that a conforming intermediary would not derive, allowing form fields or file uploads to reach an application without the intended proxy or web application firewall inspection. This issue is fixed in versions 2.2.25, 3.1.23, and 3.2.8.

References

Affected packages

Debian:12 / ruby-rack

Package

Name
ruby-rack
Purl
pkg:deb/debian/ruby-rack?arch=source&distro=bookworm

Affected ranges

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

Affected versions

2.*
2.2.6.4-1
2.2.6.4-1+deb12u1
2.2.7-1
2.2.7-1.1
2.2.13-1~deb12u1
2.2.20-0+deb12u1
2.2.22-0+deb12u1
2.2.22-0+deb12u2
3.*
3.0.0-1
3.0.8-1
3.0.8-2
3.0.8-3
3.0.8-4
3.1.9-1~exp1
3.1.9-2
3.1.12-1
3.1.12-2~exp1
3.1.16-0.1
3.1.18-1~deb13u1
3.1.18-1
3.2.4-1
3.2.5-1
3.2.5-2
3.2.6-1
3.2.6-2
3.2.6-3
3.2.7-1
3.2.8-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-125108.json"

Debian:13 / ruby-rack

Package

Name
ruby-rack
Purl
pkg:deb/debian/ruby-rack?arch=source&distro=trixie

Affected ranges

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

Affected versions

3.*
3.1.16-0.1
3.1.18-1~deb13u1
3.1.18-1
3.1.20-0+deb13u1
3.1.20-0+deb13u2
3.2.4-1
3.2.5-1
3.2.5-2
3.2.6-1
3.2.6-2
3.2.6-3
3.2.7-1
3.2.8-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-125108.json"

Debian:14 / ruby-rack

Package

Name
ruby-rack
Purl
pkg:deb/debian/ruby-rack?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.2.8-1

Affected versions

3.*
3.1.16-0.1
3.1.18-1~deb13u1
3.1.18-1
3.2.4-1
3.2.5-1
3.2.5-2
3.2.6-1
3.2.6-2
3.2.6-3
3.2.7-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-125108.json"