CVE-2026-12490
CVE-2026-12490 · Bypass of client certificate verification with transfer over TLS
This page contains facts from public vulnerability sources. Check the original advisory before updating.
When a provide-xfr is given with a tls-auth-name, a secondary requesting a transfer should provide a client certificate with that name. However, no client certificate is needed when the request comes in over TLS over the regular tls-port (and not the tls-auth-port) or over over TCP over the regular port, when the other conditions of the provide-xfr rule match.
CVSS 8.2 · High · EPSS 0.2% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
nsd
- Versions
- ≥ 4.10.1, < 4.14.3: Affected (semver)
Update to 4.14.3
nsd Debian:12
- Versions
- 4.10.1-1
- 4.10.1~rc2-1
- 4.10.1~rc2-2
- 4.11.0-1
- 4.11.1-1
- 4.12.0-1
- 4.12.0-2
- 4.13.0-1
- 4.13.0-2
- 4.13.0-3
- 4.13.0-4
- 4.13.0-5
- 4.13.0-6
- 4.14.0-1
- 4.14.1-1
- 4.14.2-1
- 4.14.3-1
- 4.15.0-1
- 4.15.0~rc1-1
- 4.15.1-1
- 4.15.2-1
- 4.6.1-1
- 4.7.0-1
- 4.8.0-1
- 4.9.1-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
nsd Debian:13
- Versions
- 4.12.0-1
- 4.12.0-2
- 4.13.0-1
- 4.13.0-2
- 4.13.0-3
- 4.13.0-4
- 4.13.0-5
- 4.13.0-6
- 4.14.0-1
- 4.14.1-1
- 4.14.2-1
- 4.14.3-1
- 4.15.0-1
- 4.15.0~rc1-1
- 4.15.1-1
- 4.15.2-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
nsd Debian:14
- Versions
- 4.12.0-1
- 4.12.0-2
- 4.13.0-1
- 4.13.0-2
- 4.13.0-3
- 4.13.0-4
- 4.13.0-5
- 4.13.0-6
- 4.14.0-1
- 4.14.1-1
- 4.14.2-1
- Affected ranges
- ECOSYSTEM: < 4.14.3-1
Update to 4.14.3-1
nsd Ubuntu:26.10
- Versions
- 4.14.0-1
- 4.14.2-1
- 4.14.3-1
- 4.15.0-1
- 4.15.0-1build1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
nsd Ubuntu:Pro:26.04:LTS
- Versions
- 4.12.0-1
- 4.13.0-6
- 4.14.0-1
- Affected ranges
- ECOSYSTEM: < 4.14.0-1ubuntu0.1~esm1
Update to 4.14.0-1ubuntu0.1~esm1