DEBIAN-CVE-2026-34073

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Source
https://security-tracker.debian.org/tracker/CVE-2026-34073
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34073.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-34073
Upstream
Published
2026-03-31T03:15:59.123Z
Modified
2026-04-07T09:00:12.403463Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
Summary
[none]
Details

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Prior to version 46.0.6, DNS name constraints were only validated against SANs within child certificates, and not the "peer name" presented during each validation. Consequently, cryptography would allow a peer named bar.example.com to validate against a wildcard leaf certificate for *.example.com, even if the leaf's parent certificate (or upwards) contained an excluded subtree constraint for bar.example.com. This issue has been patched in version 46.0.6.

References

Affected packages

Debian:11 / python-cryptography

Package

Name
python-cryptography
Purl
pkg:deb/debian/python-cryptography?arch=source

Affected ranges

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

Affected versions

3.*
3.3.2-1
3.3.2-1+deb11u1
3.4.8-1
3.4.8-2
38.*
38.0.4-1
38.0.4-2
38.0.4-3~deb12u1
38.0.4-3
38.0.4-4
41.*
41.0.7-1
41.0.7-2
41.0.7-3
41.0.7-4
41.0.7-5
42.*
42.0.5-1
42.0.5-2
43.*
43.0.0-1
43.0.0-2
43.0.0-3
44.*
44.0.2-1
44.0.2-2
45.*
45.0.6-1~exp1
45.0.6-1
45.0.7-1
46.*
46.0.1-1~exp1
46.0.1-1
46.0.5-1
46.0.5-2
46.0.6-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34073.json"

Debian:12 / python-cryptography

Package

Name
python-cryptography
Purl
pkg:deb/debian/python-cryptography?arch=source

Affected ranges

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

Affected versions

38.*
38.0.4-3
38.0.4-3+deb12u1
38.0.4-4
41.*
41.0.7-1
41.0.7-2
41.0.7-3
41.0.7-4
41.0.7-5
42.*
42.0.5-1
42.0.5-2
43.*
43.0.0-1
43.0.0-2
43.0.0-3
44.*
44.0.2-1
44.0.2-2
45.*
45.0.6-1~exp1
45.0.6-1
45.0.7-1
46.*
46.0.1-1~exp1
46.0.1-1
46.0.5-1
46.0.5-2
46.0.6-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34073.json"

Debian:13 / python-cryptography

Package

Name
python-cryptography
Purl
pkg:deb/debian/python-cryptography?arch=source

Affected ranges

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

Affected versions

43.*
43.0.0-3
43.0.0-3+deb13u1
44.*
44.0.2-1
44.0.2-2
45.*
45.0.6-1~exp1
45.0.6-1
45.0.7-1
46.*
46.0.1-1~exp1
46.0.1-1
46.0.5-1
46.0.5-2
46.0.6-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34073.json"

Debian:14 / python-cryptography

Package

Name
python-cryptography
Purl
pkg:deb/debian/python-cryptography?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
46.0.6-1

Affected versions

43.*
43.0.0-3
44.*
44.0.2-1
44.0.2-2
45.*
45.0.6-1~exp1
45.0.6-1
45.0.7-1
46.*
46.0.1-1~exp1
46.0.1-1
46.0.5-1
46.0.5-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34073.json"