DEBIAN-CVE-2026-58218
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-58218
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-58218.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-58218
- Upstream
- Published
- 2026-07-30T14:17:00Z
- Modified
- 2026-09-14T17:03:46Z
- 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
-
A flaw was found in Samba's internal DNS server where unauthenticated TKEY registration requests were added to the TKEY name cache before being rejected. A remote, unauthenticated attacker can exploit this behavior by sending a large number of TKEY requests with arbitrary names, exhausting the cache and evicting legitimate TKEY entries. This can prevent legitimate TSIG authentication for signed DNS queries, resulting in a denial of service.
- References
Affected packages
Debian:12 / samba
Package
- Name
- samba
- Purl
- pkg:deb/debian/samba?arch=source&distro=bookworm
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Affected versions
2:4.*
2:4.17.8+dfsg-2
2:4.17.8+dfsg-2.1
2:4.17.9+dfsg-0+deb12u1
2:4.17.9+dfsg-0+deb12u2
2:4.17.9+dfsg-0+deb12u3~bpo11+1
2:4.17.9+dfsg-0+deb12u3
2:4.17.10+dfsg-0+deb12u1~bpo11+1
2:4.17.10+dfsg-0+deb12u1
2:4.17.11+dfsg-0+deb12u1
2:4.17.12+dfsg-0+deb12u1~bpo11+1
2:4.17.12+dfsg-0+deb12u1
2:4.17.12+dfsg-0+deb12u2
2:4.17.12+dfsg-0+deb12u3
2:4.17.12+dfsg-0+deb12u4
2:4.18.0~rc1+dfsg-1exp
2:4.18.0~rc2+dfsg-1
2:4.18.0~rc3+dfsg-1
2:4.18.0~rc4+dfsg-1
2:4.18.0+dfsg-1~exp1
2:4.18.1+dfsg-1~exp1
2:4.18.2+dfsg-1
2:4.18.3+dfsg-1
2:4.18.3+dfsg-2
2:4.18.3+dfsg-3
2:4.18.4+dfsg-1
2:4.18.4+dfsg-2~bpo12+1
2:4.18.4+dfsg-2
2:4.18.5+dfsg-1
2:4.18.5+dfsg-2~bpo12+1
2:4.18.5+dfsg-2
2:4.18.6+dfsg-1~bpo12+1
2:4.18.6+dfsg-1
2:4.18.8+dfsg-1~bpo12+1
2:4.19.0~rc1+dfsg-1
2:4.19.0~rc1+dfsg-2
2:4.19.0~rc1+dfsg-3
2:4.19.0~rc2+dfsg-1
2:4.19.0~rc4+dfsg-1
2:4.19.0~rc4+dfsg-2
2:4.19.0+dfsg-1
2:4.19.1+dfsg-1
2:4.19.1+dfsg-2
2:4.19.1+dfsg-3
2:4.19.1+dfsg-4
2:4.19.2+dfsg-1
2:4.19.3+dfsg-1~bpo12+1
2:4.19.3+dfsg-1
2:4.19.3+dfsg-2
2:4.19.4+dfsg-1
2:4.19.4+dfsg-2~bpo12+1
2:4.19.4+dfsg-2
2:4.19.4+dfsg-3~bpo12+1
2:4.19.4+dfsg-3
2:4.19.5+dfsg-1
2:4.19.5+dfsg-2
2:4.19.5+dfsg-3
2:4.19.5+dfsg-4~bpo12+1
2:4.19.5+dfsg-4
2:4.19.5+dfsg-5
2:4.19.6+dfsg-1
2:4.19.6+dfsg-2
2:4.19.6+dfsg-3~bpo12+1
2:4.19.6+dfsg-3
2:4.20.0~rc1+dfsg-1
2:4.20.0~rc2+dfsg-1
2:4.20.0~rc2+dfsg-2
2:4.20.0~rc2+dfsg-3
2:4.20.0+dfsg-1~exp1
2:4.20.0+dfsg-1~exp2
2:4.20.1+dfsg-1
2:4.20.1+dfsg-2
2:4.20.1+dfsg-3
2:4.20.1+dfsg-4~bpo12+1
2:4.20.1+dfsg-4
2:4.20.1+dfsg-5
2:4.20.2+dfsg-1
2:4.20.2+dfsg-2~bpo12+1
2:4.20.2+dfsg-2~bpo12+2
2:4.20.2+dfsg-2
2:4.20.2+dfsg-3
2:4.20.2+dfsg-4
2:4.20.2+dfsg-5~bpo12+1
2:4.20.2+dfsg-5
2:4.20.2+dfsg-6~bpo12+1
2:4.20.2+dfsg-6
2:4.20.2+dfsg-7
2:4.20.2+dfsg-8
2:4.20.2+dfsg-9~exp1
2:4.20.2+dfsg-9~exp2
2:4.20.2+dfsg-9
2:4.20.2+dfsg-10
2:4.20.4+dfsg-1~bpo12+1
2:4.20.5+dfsg-1~bpo12+1
2:4.21.0~rc1+dfsg-1
2:4.21.0~rc1+really4.20.2+dfsg-11
2:4.21.0~rc1+really4.20.2+dfsg-11r
2:4.21.0~rc1+really4.20.3+dfsg-1
2:4.21.0~rc1+really4.20.4+dfsg-1
2:4.21.0~rc2+dfsg-1
2:4.21.0+dfsg-1
2:4.21.1+dfsg-1~bpo12+1
2:4.21.1+dfsg-1
2:4.21.1+dfsg-2~bpo12+1
2:4.21.1+dfsg-2
2:4.21.1+dfsg-2+hurd.1
2:4.21.2+dfsg-1
2:4.21.2+dfsg-2
2:4.21.2+dfsg-3~bpo12+1
2:4.21.2+dfsg-3
2:4.21.2+dfsg-4~exp1
2:4.21.2+dfsg-4
2:4.21.2+dfsg-4+hurd.1
2:4.21.3+dfsg-1~bpo12+1
2:4.21.3+dfsg-1
2:4.21.3+dfsg-2
2:4.21.3+dfsg-3
2:4.21.3+dfsg-4~bpo12+1
2:4.21.3+dfsg-4
2:4.21.3+dfsg-5~bpo12+1
2:4.21.3+dfsg-5
2:4.21.3+dfsg-6~bpo12+1
2:4.21.3+dfsg-6
2:4.21.4+dfsg-1~bpo12+1
2:4.21.4+dfsg-1
2:4.21.5+dfsg-1~bpo12+1
2:4.22.0~rc1+dfsg-1
2:4.22.0+dfsg-1
2:4.22.0+dfsg-2
2:4.22.0+dfsg-3
2:4.22.1+dfsg-1~bpo12+1
2:4.22.1+dfsg-1
2:4.22.2+dfsg-1~bpo12+1
2:4.22.2+dfsg-1
2:4.22.3+dfsg-1
2:4.22.3+dfsg-2~bpo12+1
2:4.22.3+dfsg-2
2:4.22.3+dfsg-3
2:4.22.3+dfsg-4~bpo12+1
2:4.22.3+dfsg-4
2:4.22.4+dfsg-1~deb13u1~bpo12+1
2:4.22.4+dfsg-1~deb13u1
2:4.22.4+dfsg-1
2:4.23.0~rc1+dfsg-1
2:4.23.0~rc2+dfsg-1
2:4.23.0~rc3+dfsg-1
2:4.23.0+dfsg-1
2:4.23.0+dfsg-2
2:4.23.0+dfsg-3
2:4.23.1+dfsg-1
2:4.23.2+dfsg-1
2:4.23.3+dfsg-1~bpo13+1
2:4.23.3+dfsg-1
2:4.23.4+dfsg-1~bpo13+1
2:4.23.4+dfsg-1
2:4.23.5+dfsg-1~bpo13+1
2:4.23.5+dfsg-1
2:4.23.6+dfsg-1
2:4.23.6+dfsg-2~bpo13+1
2:4.23.6+dfsg-2
2:4.24.0~rc1+dfsg-1
2:4.24.0~rc1+dfsg-2
2:4.24.0~rc1+dfsg-3
2:4.24.0~rc2+dfsg-1
2:4.24.0+dfsg-1
2:4.24.1+dfsg-1
2:4.24.2+dfsg-1~bpo13+1
2:4.24.2+dfsg-1
2:4.24.3+dfsg-1~bpo13+1
2:4.24.3+dfsg-1
2:4.24.4+dfsg-1~bpo13+1
2:4.24.4+dfsg-1
2:4.24.5+dfsg-1~bpo13+1
2:4.24.5+dfsg-1
2:4.24.6+dfsg-1
2:4.24.7+dfsg-1~bpo13+1
2:4.24.7+dfsg-1
2:4.25.0~rc1+dfsg-1
Debian:13 / samba
Package
- Name
- samba
- Purl
- pkg:deb/debian/samba?arch=source&distro=trixie
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed2:4.22.10+dfsg-0+deb13u2
Debian:14 / samba
Package
- Name
- samba
- Purl
- pkg:deb/debian/samba?arch=source&distro=forky
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed2:4.24.5+dfsg-1
Affected versions
2:4.*
2:4.22.3+dfsg-4
2:4.22.4+dfsg-1~deb13u1~bpo12+1
2:4.22.4+dfsg-1~deb13u1
2:4.22.4+dfsg-1
2:4.23.0~rc1+dfsg-1
2:4.23.0~rc2+dfsg-1
2:4.23.0~rc3+dfsg-1
2:4.23.0+dfsg-1
2:4.23.0+dfsg-2
2:4.23.0+dfsg-3
2:4.23.1+dfsg-1
2:4.23.2+dfsg-1
2:4.23.3+dfsg-1~bpo13+1
2:4.23.3+dfsg-1
2:4.23.4+dfsg-1~bpo13+1
2:4.23.4+dfsg-1
2:4.23.5+dfsg-1~bpo13+1
2:4.23.5+dfsg-1
2:4.23.6+dfsg-1
2:4.23.6+dfsg-2~bpo13+1
2:4.23.6+dfsg-2
2:4.24.0~rc1+dfsg-1
2:4.24.0~rc1+dfsg-2
2:4.24.0~rc1+dfsg-3
2:4.24.0~rc2+dfsg-1
2:4.24.0+dfsg-1
2:4.24.1+dfsg-1
2:4.24.2+dfsg-1~bpo13+1
2:4.24.2+dfsg-1
2:4.24.3+dfsg-1~bpo13+1
2:4.24.3+dfsg-1
2:4.24.4+dfsg-1~bpo13+1
2:4.24.4+dfsg-1
2:4.24.5+dfsg-1~bpo13+1