DEBIAN-CVE-2026-33810

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Source
https://security-tracker.debian.org/tracker/CVE-2026-33810
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-33810.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2026-33810
Upstream
Published
2026-04-08T02:16:03.950Z
Modified
2026-04-28T20:32:47.902555Z
Severity
  • 8.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N CVSS Calculator
Summary
[none]
Details

When verifying a certificate chain containing excluded DNS constraints, these constraints are not correctly applied to wildcard DNS SANs which use a different case than the constraint. This only affects validation of otherwise trusted certificate chains, issued by a root CA in the VerifyOptions.Roots CertPool, or in the system certificate pool.

References

Affected packages

Debian:14 / golang-1.26

Package

Name
golang-1.26
Purl
pkg:deb/debian/golang-1.26?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.26.2-1

Affected versions

1.*
1.26~rc2-1
1.26~rc3-1
1.26~rc3-2
1.26.0-1
1.26.1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-33810.json"