DEBIAN-CVE-2026-9648
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-9648
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-9648.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-9648
- Upstream
- Published
- 2026-06-11T16:16:25Z
- Modified
- 2026-09-14T17:03:39Z
- Severity
-
- 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
- Summary
- [none]
- Details
-
The crypton-x509-validation Haskell library fails to enforce X.509 NameConstraints, allowing TLS clients to accept certificates whose Subject Alternative Names fall outside the issuing CA’s permitted subtrees. This oversight enables an attacker who compromises a name-constrained sub-CA to impersonate domains beyond its intended scope.
- References
Affected packages
Debian:13
haskell-crypton-x509
Package
- Name
- haskell-crypton-x509
- Purl
- pkg:deb/debian/haskell-crypton-x509?arch=source&distro=trixie
haskell-crypton-x509-validation
Package
- Name
- haskell-crypton-x509-validation
- Purl
- pkg:deb/debian/haskell-crypton-x509-validation?arch=source&distro=trixie
Debian:14
haskell-crypton-x509
Package
- Name
- haskell-crypton-x509
- Purl
- pkg:deb/debian/haskell-crypton-x509?arch=source&distro=forky
haskell-crypton-x509-validation
Package
- Name
- haskell-crypton-x509-validation
- Purl
- pkg:deb/debian/haskell-crypton-x509-validation?arch=source&distro=forky