CVE-2026-3591
- Source
- https://cve.org/CVERecord?id=CVE-2026-3591
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-3591.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-3591
- Downstream
ALPINE (1)
AZL (1)
BELL (1)
DEBIAN (1)
MINI (1)
openSUSE (2)
RHSA (1)
UBUNTU (1)
- Related
- Published
- 2026-03-25T14:16:37Z
- Modified
- 2026-10-24T10:30:39Z
- Severity
-
- 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
- Summary
- [none]
- Details
-
A use-after-return vulnerability exists in the
namedserver 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. - References
Affected packages
Git / github.com/isc-projects/bind9
Affected ranges
- Type
- GIT
- Repo
- https://github.com/isc-projects/bind9
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "cpe": "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*", "range": [ { "introduced": "9.20.0" }, { "fixed": "9.20.21" } ], "source": "CPE_RANGE" }, { "cpe": "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*", "range": [ { "introduced": "9.21.0" }, { "fixed": "9.21.20" } ], "source": "CPE_RANGE" } ] }
Git / gitlab.isc.org/isc-projects/bind9
Affected ranges
- Type
- GIT
- Repo
- https://gitlab.isc.org/isc-projects/bind9
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "cpe": "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*", "range": [ { "introduced": "9.20.0" }, { "fixed": "9.20.21" } ], "source": "CPE_RANGE" }, { "cpe": "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*", "range": [ { "introduced": "9.21.0" }, { "fixed": "9.21.20" } ], "source": "CPE_RANGE" } ] }