CVE-2026-58224
ctdb: A flaw was found in Samba's CTDB, the clustered database service used by Samba
CVE-2026-58224 is fixed in 31 products on 1 platform, first by ctdb 2:4.23.6+dfsg-1ubuntu2.2, released July 28, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
6.5
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0034
28th percentile
A flaw was found in Samba's CTDB, the clustered database service used by Samba. Insufficient integrity validation of received CTDB protocol packets allows malformed packets containing invalid field lengths, improperly terminated strings, or inconsistent packet sizes to be processed without adequate bounds checking. A remote attacker with access to the CTDB private network may trigger a denial of service through process crashes or excessive memory consumption and, in limited cases, disclose adjacent memory contents.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| ctdb · Ubuntu 22.04.1 LTS (jammy) | 2:4.15.13+dfsg-0ubuntu1.13 | ctdb 2:4.15.13+dfsg-0ubuntu1.13 | Jul 31, 2026 |
| ctdb · Ubuntu 24.04.5 LTS (noble) | 2:4.19.5+dfsg-4ubuntu9.7 | ctdb 2:4.19.5+dfsg-4ubuntu9.7 | Jul 31, 2026 |
| ctdb · Ubuntu 26.04.1 LTS (resolute) | 2:4.23.6+dfsg-1ubuntu2.2 | ctdb 2:4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| ldb-tools · Ubuntu 24.04.5 LTS (noble) | 2:2.8.0+samba4.19.5+dfsg-4ubuntu9.7 | ldb-tools 2:2.8.0+samba4.19.5+dfsg-4ubuntu9.7 | Jul 31, 2026 |
| ldb-tools · Ubuntu 26.04.1 LTS (resolute) | 2:2.11.0+samba4.23.6+dfsg-1ubuntu2.2 | ldb-tools 2:2.11.0+samba4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| libldb2 · Ubuntu 24.04.5 LTS (noble) | 2:2.8.0+samba4.19.5+dfsg-4ubuntu9.7 | libldb2 2:2.8.0+samba4.19.5+dfsg-4ubuntu9.7 | Jul 31, 2026 |
| libldb2 · Ubuntu 26.04.1 LTS (resolute) | 2:2.11.0+samba4.23.6+dfsg-1ubuntu2.2 | libldb2 2:2.11.0+samba4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| libnss-winbind · Ubuntu 22.04.1 LTS (jammy) | 2:4.15.13+dfsg-0ubuntu1.13 | libnss-winbind 2:4.15.13+dfsg-0ubuntu1.13 | Jul 31, 2026 |
| libnss-winbind · Ubuntu 24.04.5 LTS (noble) | 2:4.19.5+dfsg-4ubuntu9.7 | libnss-winbind 2:4.19.5+dfsg-4ubuntu9.7 | Jul 31, 2026 |
| libnss-winbind · Ubuntu 26.04.1 LTS (resolute) | 2:4.23.6+dfsg-1ubuntu2.2 | libnss-winbind 2:4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| libpam-winbind · Ubuntu 22.04.1 LTS (jammy) | 2:4.15.13+dfsg-0ubuntu1.13 | libpam-winbind 2:4.15.13+dfsg-0ubuntu1.13 | Jul 31, 2026 |
| libpam-winbind · Ubuntu 24.04.5 LTS (noble) | 2:4.19.5+dfsg-4ubuntu9.7 | libpam-winbind 2:4.19.5+dfsg-4ubuntu9.7 | Jul 31, 2026 |
| libpam-winbind · Ubuntu 26.04.1 LTS (resolute) | 2:4.23.6+dfsg-1ubuntu2.2 | libpam-winbind 2:4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| libsmbclient · Ubuntu 22.04.1 LTS (jammy) | 2:4.15.13+dfsg-0ubuntu1.13 | libsmbclient 2:4.15.13+dfsg-0ubuntu1.13 | Jul 31, 2026 |
| libsmbclient0 · Ubuntu 24.04.5 LTS (noble) | 2:4.19.5+dfsg-4ubuntu9.7 | libsmbclient0 2:4.19.5+dfsg-4ubuntu9.7 | Jul 31, 2026 |
| libsmbclient0 · Ubuntu 26.04.1 LTS (resolute) | 2:4.23.6+dfsg-1ubuntu2.2 | libsmbclient0 2:4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| libtalloc2 · Ubuntu 26.04.1 LTS (resolute) | 2:2.4.3+samba4.23.6+dfsg-1ubuntu2.2 | libtalloc2 2:2.4.3+samba4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| libtdb1 · Ubuntu 26.04.1 LTS (resolute) | 2:1.4.14+samba4.23.6+dfsg-1ubuntu2.2 | libtdb1 2:1.4.14+samba4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| libtevent0t64 · Ubuntu 26.04.1 LTS (resolute) | 2:0.17.1+samba4.23.6+dfsg-1ubuntu2.2 | libtevent0t64 2:0.17.1+samba4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| libwbclient0 · Ubuntu 22.04.1 LTS (jammy) | 2:4.15.13+dfsg-0ubuntu1.13 | libwbclient0 2:4.15.13+dfsg-0ubuntu1.13 | Jul 31, 2026 |
| libwbclient0 · Ubuntu 24.04.5 LTS (noble) | 2:4.19.5+dfsg-4ubuntu9.7 | libwbclient0 2:4.19.5+dfsg-4ubuntu9.7 | Jul 31, 2026 |
| libwbclient0 · Ubuntu 26.04.1 LTS (resolute) | 2:4.23.6+dfsg-1ubuntu2.2 | libwbclient0 2:4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| python3-ldb · Ubuntu 24.04.5 LTS (noble) | 2:2.8.0+samba4.19.5+dfsg-4ubuntu9.7 | python3-ldb 2:2.8.0+samba4.19.5+dfsg-4ubuntu9.7 | Jul 31, 2026 |
| python3-ldb · Ubuntu 26.04.1 LTS (resolute) | 2:2.11.0+samba4.23.6+dfsg-1ubuntu2.2 | python3-ldb 2:2.11.0+samba4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| python3-samba · Ubuntu 22.04.1 LTS (jammy) | 2:4.15.13+dfsg-0ubuntu1.13 | python3-samba 2:4.15.13+dfsg-0ubuntu1.13 | Jul 31, 2026 |
| python3-samba · Ubuntu 24.04.5 LTS (noble) | 2:4.19.5+dfsg-4ubuntu9.7 | python3-samba 2:4.19.5+dfsg-4ubuntu9.7 | Jul 31, 2026 |
| python3-samba · Ubuntu 26.04.1 LTS (resolute) | 2:4.23.6+dfsg-1ubuntu2.2 | python3-samba 2:4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| python3-talloc · Ubuntu 26.04.1 LTS (resolute) | 2:2.4.3+samba4.23.6+dfsg-1ubuntu2.2 | python3-talloc 2:2.4.3+samba4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| python3-tdb · Ubuntu 26.04.1 LTS (resolute) | 2:1.4.14+samba4.23.6+dfsg-1ubuntu2.2 | python3-tdb 2:1.4.14+samba4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| registry-tools · Ubuntu 22.04.1 LTS (jammy) | 2:4.15.13+dfsg-0ubuntu1.13 | registry-tools 2:4.15.13+dfsg-0ubuntu1.13 | Jul 31, 2026 |
| registry-tools · Ubuntu 24.04.5 LTS (noble) | 2:4.19.5+dfsg-4ubuntu9.7 | registry-tools 2:4.19.5+dfsg-4ubuntu9.7 | Jul 31, 2026 |
| registry-tools · Ubuntu 26.04.1 LTS (resolute) | 2:4.23.6+dfsg-1ubuntu2.2 | registry-tools 2:4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| samba · Debian 13.5 (trixie) | 2:4.22.10+dfsg-0+deb13u2 | DEBIAN-CVE-2026-58224 | Jul 31, 2026 |
| samba · Debian 14 | 2:4.24.5+dfsg-1 | DEBIAN-CVE-2026-58224 | Jul 31, 2026 |
| samba · Ubuntu 22.04.1 LTS (jammy) | 2:4.15.13+dfsg-0ubuntu1.13 | samba 2:4.15.13+dfsg-0ubuntu1.13 | Jul 31, 2026 |
| samba · Ubuntu 24.04.5 LTS (noble) | 2:4.19.5+dfsg-4ubuntu9.7 | samba 2:4.19.5+dfsg-4ubuntu9.7 | Jul 31, 2026 |
| samba · Ubuntu 26.04.1 LTS (resolute) | 2:4.23.6+dfsg-1ubuntu2.2 | samba 2:4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| samba · opensuse-leap 16.0 | 4.22.11+git.552.66cfeb7de0a-160000.1.1 | OPENSUSE-SU-2026:21540-1 | Aug 6, 2026 |
| samba · sles 15.6 | 4.19.8+git.501.67274891bc-150600.3.29.1 | SUSE-SU-2026:3364-1 | Jul 28, 2026 |
| samba · sles 15.7 | 4.21.10+git.533.31d7e5508d-150700.3.29.1 | SUSE-SU-2026:3363-1 | Jul 28, 2026 |
| samba · sles 16.0 | 4.22.11+git.552.66cfeb7de0a-160000.1.1 | SUSE-SU-2026:23152-1 | Aug 6, 2026 |
| samba-ad-dc · Ubuntu 24.04.5 LTS (noble) | 2:4.19.5+dfsg-4ubuntu9.7 | samba-ad-dc 2:4.19.5+dfsg-4ubuntu9.7 | Jul 31, 2026 |
| samba-ad-dc · Ubuntu 26.04.1 LTS (resolute) | 2:4.23.6+dfsg-1ubuntu2.2 | samba-ad-dc 2:4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| samba-ad-provision · Ubuntu 24.04.5 LTS (noble) | 2:4.19.5+dfsg-4ubuntu9.7 | samba-ad-provision 2:4.19.5+dfsg-4ubuntu9.7 | Jul 31, 2026 |
| samba-ad-provision · Ubuntu 26.04.1 LTS (resolute) | 2:4.23.6+dfsg-1ubuntu2.2 | samba-ad-provision 2:4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| samba-common · Ubuntu 22.04.1 LTS (jammy) | 2:4.15.13+dfsg-0ubuntu1.13 | samba-common 2:4.15.13+dfsg-0ubuntu1.13 | Jul 31, 2026 |
| samba-common · Ubuntu 24.04.5 LTS (noble) | 2:4.19.5+dfsg-4ubuntu9.7 | samba-common 2:4.19.5+dfsg-4ubuntu9.7 | Jul 31, 2026 |
| samba-common · Ubuntu 26.04.1 LTS (resolute) | 2:4.23.6+dfsg-1ubuntu2.2 | samba-common 2:4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| samba-common-bin · Ubuntu 22.04.1 LTS (jammy) | 2:4.15.13+dfsg-0ubuntu1.13 | samba-common-bin 2:4.15.13+dfsg-0ubuntu1.13 | Jul 31, 2026 |
| samba-common-bin · Ubuntu 24.04.5 LTS (noble) | 2:4.19.5+dfsg-4ubuntu9.7 | samba-common-bin 2:4.19.5+dfsg-4ubuntu9.7 | Jul 31, 2026 |
| samba-common-bin · Ubuntu 26.04.1 LTS (resolute) | 2:4.23.6+dfsg-1ubuntu2.2 | samba-common-bin 2:4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| samba-dsdb-modules · Ubuntu 22.04.1 LTS (jammy) | 2:4.15.13+dfsg-0ubuntu1.13 | samba-dsdb-modules 2:4.15.13+dfsg-0ubuntu1.13 | Jul 31, 2026 |
| samba-dsdb-modules · Ubuntu 24.04.5 LTS (noble) | 2:4.19.5+dfsg-4ubuntu9.7 | samba-dsdb-modules 2:4.19.5+dfsg-4ubuntu9.7 | Jul 31, 2026 |
| samba-dsdb-modules · Ubuntu 26.04.1 LTS (resolute) | 2:4.23.6+dfsg-1ubuntu2.2 | samba-dsdb-modules 2:4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| samba-libs · Ubuntu 22.04.1 LTS (jammy) | 2:4.15.13+dfsg-0ubuntu1.13 | samba-libs 2:4.15.13+dfsg-0ubuntu1.13 | Jul 31, 2026 |
| samba-libs · Ubuntu 24.04.5 LTS (noble) | 2:4.19.5+dfsg-4ubuntu9.7 | samba-libs 2:4.19.5+dfsg-4ubuntu9.7 | Jul 31, 2026 |
| samba-libs · Ubuntu 26.04.1 LTS (resolute) | 2:4.23.6+dfsg-1ubuntu2.2 | samba-libs 2:4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| samba-testsuite · Ubuntu 22.04.1 LTS (jammy) | 2:4.15.13+dfsg-0ubuntu1.13 | samba-testsuite 2:4.15.13+dfsg-0ubuntu1.13 | Jul 31, 2026 |
| samba-testsuite · Ubuntu 24.04.5 LTS (noble) | 2:4.19.5+dfsg-4ubuntu9.7 | samba-testsuite 2:4.19.5+dfsg-4ubuntu9.7 | Jul 31, 2026 |
| samba-testsuite · Ubuntu 26.04.1 LTS (resolute) | 2:4.23.6+dfsg-1ubuntu2.2 | samba-testsuite 2:4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| samba-vfs-ceph · Ubuntu 26.04.1 LTS (resolute) | 2:4.23.6+dfsg-1ubuntu2.2 | samba-vfs-ceph 2:4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| samba-vfs-glusterfs · Ubuntu 26.04.1 LTS (resolute) | 2:4.23.6+dfsg-1ubuntu2.2 | samba-vfs-glusterfs 2:4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| samba-vfs-modules · Ubuntu 22.04.1 LTS (jammy) | 2:4.15.13+dfsg-0ubuntu1.13 | samba-vfs-modules 2:4.15.13+dfsg-0ubuntu1.13 | Jul 31, 2026 |
| samba-vfs-modules · Ubuntu 24.04.5 LTS (noble) | 2:4.19.5+dfsg-4ubuntu9.7 | samba-vfs-modules 2:4.19.5+dfsg-4ubuntu9.7 | Jul 31, 2026 |
| samba-vfs-modules · Ubuntu 26.04.1 LTS (resolute) | 2:4.23.6+dfsg-1ubuntu2.2 | samba-vfs-modules 2:4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| samba-vfs-modules-extra · Ubuntu 24.04.5 LTS (noble) | 2:4.19.5+dfsg-4ubuntu9.7 | samba-vfs-modules-extra 2:4.19.5+dfsg-4ubuntu9.7 | Jul 31, 2026 |
| samba-vfs-modules-extra · Ubuntu 26.04.1 LTS (resolute) | 2:4.23.6+dfsg-1ubuntu2.2 | samba-vfs-modules-extra 2:4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| smbclient · Ubuntu 22.04.1 LTS (jammy) | 2:4.15.13+dfsg-0ubuntu1.13 | smbclient 2:4.15.13+dfsg-0ubuntu1.13 | Jul 31, 2026 |
| smbclient · Ubuntu 24.04.5 LTS (noble) | 2:4.19.5+dfsg-4ubuntu9.7 | smbclient 2:4.19.5+dfsg-4ubuntu9.7 | Jul 31, 2026 |
| smbclient · Ubuntu 26.04.1 LTS (resolute) | 2:4.23.6+dfsg-1ubuntu2.2 | smbclient 2:4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| tdb-tools · Ubuntu 26.04.1 LTS (resolute) | 2:1.4.14+samba4.23.6+dfsg-1ubuntu2.2 | tdb-tools 2:1.4.14+samba4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
| winbind · Ubuntu 22.04.1 LTS (jammy) | 2:4.15.13+dfsg-0ubuntu1.13 | winbind 2:4.15.13+dfsg-0ubuntu1.13 | Jul 31, 2026 |
| winbind · Ubuntu 24.04.5 LTS (noble) | 2:4.19.5+dfsg-4ubuntu9.7 | winbind 2:4.19.5+dfsg-4ubuntu9.7 | Jul 31, 2026 |
| winbind · Ubuntu 26.04.1 LTS (resolute) | 2:4.23.6+dfsg-1ubuntu2.2 | winbind 2:4.23.6+dfsg-1ubuntu2.2 | Jul 28, 2026 |
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