DEBIAN-CVE-2026-69248

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Source
https://security-tracker.debian.org/tracker/CVE-2026-69248
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-69248.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-69248
Upstream
Published
2026-08-03T22:16:52Z
Modified
2026-09-11T08:47:27Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/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

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. In versions 45.0.0 through 48.0.0, if an intermediate constrained CA permits the DNS name foo.example.com, and the leaf certificate has a wildcard in its DNS SAN of *.example.com, python-cryptography's verifier accepts which allows escaping outside of the permitted names. The core issue is in DNSConstraint::matches, where a wildcard pattern was treated as matching a more-specific permitted constraint even though *.example.com can expand to sibling names such as bar.example.com outside foo.example.com. This allows acceptance of an invalid certificate chain. This issue is fixed in 49.0.0.

References

Affected packages

Debian:12 / python-cryptography

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown 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
46.0.7-1
47.*
47.0.0-1
49.*
49.0.0-1~exp1
49.0.0-1
49.0.0-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-69248.json"

Debian:13 / python-cryptography

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown 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
46.0.7-1
47.*
47.0.0-1
49.*
49.0.0-1~exp1
49.0.0-1
49.0.0-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-69248.json"

Debian:14 / python-cryptography

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
49.0.0-1

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
46.0.6-1
46.0.7-1
47.*
47.0.0-1
49.*
49.0.0-1~exp1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-69248.json"