DEBIAN-CVE-2026-48057

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Source
https://security-tracker.debian.org/tracker/CVE-2026-48057
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48057.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-48057
Upstream
Published
2026-11-06T22:17:53Z
Modified
2026-11-07T19:00:41Z
Severity
  • 2.1 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

Botan is a C++ cryptography library. Prior to 3.13.0, Botan's X.509 Distinguished Name decoder flattens the Attribute-Value Assertions in each Relative Distinguished Name and loses multi-value RDN grouping before DN name-constraint enforcement. An attacker controlling a name-constrained intermediate CA can issue a certificate with a multi-value RDN whose first Common Name matches the permitted constraint and whose second Common Name is attacker-chosen, causing the constraint check to accept the flattened first value. If the certificate contains no subjectAlternativeName extension, the second Common Name can then be accepted as a hostname; Botan does not fall back to Common Name hostname matching when any subjectAlternativeName is present. The exposure is limited to deployments using DN name constraints, which are uncommon outside internal PKIs, and to certificates without a subjectAlternativeName. This issue is fixed in version 3.13.0.

References

Affected packages

Debian:12 / botan

Package

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

Affected ranges

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

Affected versions

2.*
2.19.3+dfsg-1
2.19.3+dfsg-1+deb12u1
2.19.4+dfsg-1
2.19.5+dfsg-1
2.19.5+dfsg-2
2.19.5+dfsg-3
2.19.5+dfsg-4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48057.json"

Debian:13 / botan

Package

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

Affected ranges

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

Affected versions

2.*
2.19.5+dfsg-4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48057.json"

Debian:13 / botan3

Package

Name
botan3
Purl
pkg:deb/debian/botan3?arch=source&distro=trixie

Affected ranges

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

Affected versions

3.*
3.7.1+dfsg-2
3.8.1+dfsg-1
3.9.0+dfsg-1
3.9.0+dfsg-2
3.9.0+dfsg-2.1
3.10.0+dfsg-1
3.10.0+dfsg-2
3.11.0+dfsg-1
3.11.1+dfsg-1
3.11.1+dfsg-2
3.12.0+dfsg-1
3.12.0+dfsg-2~deb13u1
3.12.0+dfsg-2
3.13.0+dfsg-1
3.13.0+dfsg-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48057.json"

Debian:14 / botan3

Package

Name
botan3
Purl
pkg:deb/debian/botan3?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.13.0+dfsg-2

Affected versions

3.*
3.7.1+dfsg-2
3.8.1+dfsg-1
3.9.0+dfsg-1
3.9.0+dfsg-2
3.9.0+dfsg-2.1
3.10.0+dfsg-1
3.10.0+dfsg-2
3.11.0+dfsg-1
3.11.1+dfsg-1
3.11.1+dfsg-2
3.12.0+dfsg-1
3.12.0+dfsg-2~deb13u1
3.12.0+dfsg-2
3.13.0+dfsg-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48057.json"