DEBIAN-CVE-2026-1858
wget2 accepts a server certificate with incorrect Key Usage (KU) or Extended Key Usage (EKU). If the attackers compromise a certificate (with the associated private key) issued for a different purpose, they may be able to reuse it for TLS server authentication.
DEBIAN-CVE-2026-1858
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-2026-1858
wget2
Source reference: /affected/0/package/name
- Affected versions
- 1.99.1-2.2
Source reference:
/affected/0/versions2.1.0-1Source reference:
/affected/0/versions2.1.0-2Source reference:
/affected/0/versions2.1.0-2.1Source reference:
/affected/0/versions2.1.0-2.1~exp1Source reference:
/affected/0/versions2.1.0-3Source reference:
/affected/0/versions2.1.0-4Source reference:
/affected/0/versions2.1.0-5Source reference:
/affected/0/versions2.2.0+ds-1Source reference:
/affected/0/versions2.2.0+ds-1~exp1Source reference:
/affected/0/versions2.2.0+ds-1~exp2Source reference:
/affected/0/versions2.2.0+ds-1~exp3Source reference:
/affected/0/versions2.2.0+ds-2Source reference:
/affected/0/versions2.2.0+ds-3Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
wget2
Source reference: /affected/1/package/name
- Affected versions
- 2.2.0+ds-1
Source reference:
/affected/1/versions2.2.0+ds-1+deb13u1Source reference:
/affected/1/versions2.2.0+ds-2Source reference:
/affected/1/versions2.2.0+ds-3Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
wget2
Source reference: /affected/2/package/name
- Affected versions
- 2.2.0+ds-1
Source reference:
/affected/2/versions2.2.0+ds-2Source reference:
/affected/2/versions2.2.0+ds-3Source reference:
/affected/2/versions - Fixed versions
- Not stated in this record
- 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"
}
]
}
],
"package": {
"name": "wget2",
"purl": "pkg:deb/debian/wget2?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"1.99.1-2.2",
"2.1.0-1",
"2.1.0-2",
"2.1.0-2.1",
"2.1.0-2.1~exp1",
"2.1.0-3",
"2.1.0-4",
"2.1.0-5",
"2.2.0+ds-1",
"2.2.0+ds-1~exp1",
"2.2.0+ds-1~exp2",
"2.2.0+ds-1~exp3",
"2.2.0+ds-2",
"2.2.0+ds-3"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-1858.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "wget2",
"purl": "pkg:deb/debian/wget2?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"2.2.0+ds-1",
"2.2.0+ds-1+deb13u1",
"2.2.0+ds-2",
"2.2.0+ds-3"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-1858.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "wget2",
"purl": "pkg:deb/debian/wget2?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"2.2.0+ds-1",
"2.2.0+ds-2",
"2.2.0+ds-3"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-1858.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #56173 · Revision 1
- Added to Heist Feed
- Publisher date