CVE-2026-5950
- Source
- https://cve.org/CVERecord?id=CVE-2026-5950
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-5950.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-5950
- Downstream
- Related
- Published
- 2026-05-20T13:16:40.450Z
- Modified
- 2026-05-31T02:56:29.864279Z
- Severity
-
- 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
- Summary
- [none]
- Details
-
An unbounded resend loop vulnerability exists in the BIND 9 resolver state machine during bad-server handling, enabling a remote unauthenticated attacker to cause severe resource exhaustion by sending queries that trigger specific retry conditions. This issue affects BIND 9 versions 9.18.36 through 9.18.48, 9.20.8 through 9.20.22, 9.21.7 through 9.21.21, 9.18.36-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-S1.
- References
Affected packages
Git / github.com/isc-projects/bind9
Affected ranges
- Type
- GIT
- Repo
- https://github.com/isc-projects/bind9
- Events
- Database specific
{ "cpe": "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*", "extracted_events": [ { "introduced": "9.18.36" }, { "fixed": "9.18.49" }, { "introduced": "9.20.8" }, { "fixed": "9.20.23" }, { "introduced": "9.21.7" }, { "fixed": "9.21.21" } ], "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
{ "cpe": "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*", "extracted_events": [ { "introduced": "9.18.36" }, { "fixed": "9.18.49" }, { "introduced": "9.20.8" }, { "fixed": "9.20.23" }, { "introduced": "9.21.7" }, { "fixed": "9.21.21" } ], "source": "CPE_RANGE" }