CVE-2026-3104
A specially crafted domain can be used to cause a memory leak in a BIND resolver simply by querying this domain. 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.
Scoring
- Severity
- HIGH
- CVSS base score
- 7.5
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS probability
- 0.70%
- CWE
- CWE-772
- Published
- 2026-03-25
- Last modified
- 2026-09-01
Affected products
- ISC BIND 9
- ISC BIND 9
- ISC BIND 9
- ISC BIND 9
- ISC BIND 9
Weakness type
Related vulnerabilities
- CVE-2026-72931 — Windows Secure Socket Tunneling Protocol (SSTP) Denial of Service Vulnerability
- CVE-2026-18149 — undici vulnerable to Denial of Service via orphaned RetryHandler response body
- CVE-2026-69664 — httpd parks a request worker indefinitely on a malformed chunk size sent after the headers
- CVE-2026-71380 — httpd applies no timeout while receiving a request body, parking a worker on a stalled client
- CVE-2026-77384 — libp2p: Circuit relay v2 server reservation refresh leaks abort listeners and allows remote resource exhaustion
- CVE-2026-59654 — Apache CloudStack: DoS caused by database connections leak
- CVE-2026-73508 — Netty: Memory Leak in DNS Record Decoder via Malformed Domain Names
- CVE-2026-73215 — The coturn server can end in a state where it does not accept more requests with "even-port" enabled.