DEBIAN-CVE-2026-33810
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.
DEBIAN-CVE-2026-33810
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-33810
golang-1.26
Source reference: /affected/0/package/name
- Affected versions
- 1.26.0-1
Source reference:
/affected/0/versions1.26.1-1Source reference:
/affected/0/versions1.26~rc2-1Source reference:
/affected/0/versions1.26~rc3-1Source reference:
/affected/0/versions1.26~rc3-2Source reference:
/affected/0/versions - Fixed versions
- 1.26.2-1
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.26.2-1"
}
]
}
],
"package": {
"name": "golang-1.26",
"purl": "pkg:deb/debian/golang-1.26?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"1.26.0-1",
"1.26.1-1",
"1.26~rc2-1",
"1.26~rc3-1",
"1.26~rc3-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-33810.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #55954 · Revision 1
- Added to Heist Feed
- Publisher date