ALPINE-CVE-2026-3591
A use-after-return vulnerability exists in the `named` server when handling DNS queries signed with SIG(0). Using a specially-crafted DNS request, an attacker may be able to cause an ACL to improperly (mis)match an IP address. In a default-allow ACL (denying only specific IP addresses), this may lead to unauthorized access. Default-deny ACLs should fail-secure. This issue affects BIND 9 versions 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, and 9.20.9-S1 through 9.20.20-S1. BIND 9 versions 9.18.0 through 9.18.46 and 9.18.11-S1 through 9.18.46-S1 are NOT affected.
ALPINE-CVE-2026-3591
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:ALPINE-CVE-2026-3591
bind
Source reference: /affected/0/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 9.20.21-r0
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
bind
Source reference: /affected/1/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 9.20.21-r0
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
bind
Source reference: /affected/2/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 9.20.21-r0
Source reference:
/affected/2/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": "9.20.0"
},
{
"fixed": "9.20.21-r0"
}
]
}
],
"package": {
"name": "bind",
"purl": "pkg:apk/alpine/bind?arch=source",
"ecosystem": "Alpine:v3.22"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-3591.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "9.20.0"
},
{
"fixed": "9.20.21-r0"
}
]
}
],
"package": {
"name": "bind",
"purl": "pkg:apk/alpine/bind?arch=source",
"ecosystem": "Alpine:v3.23"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-3591.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "9.20.0"
},
{
"fixed": "9.20.21-r0"
}
]
}
],
"package": {
"name": "bind",
"purl": "pkg:apk/alpine/bind?arch=source",
"ecosystem": "Alpine:v3.24"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-3591.json"
},
"ecosystem_specific": {}
}
]Publisher severity
No explicit severity was provided.
- Event
- #54316 · Revision 1
- Added to Heist Feed
- Publisher date