# RHSA-2026:22644: Security update for 34 packages RHSA-2026:22644, released June 24, 2026, fixes 5 CVEs across 34 products. None of them is reported as exploited. Patch Radar priority: Urgent. - Web page: https://patchblox.com/security/fix/linux/rhsa-2026-22644 - Platform: Linux - Released: Jun 24, 2026 - Priority: Urgent (Closes CVE-2026-4480, rated Critical) - CVEs: 5, exploited: 0, on CISA KEV: 0 - Vendor advisory: https://access.redhat.com/errata/RHSA-2026:22644 ## Applies to | Product | Release | Fixed in | |---|---|---| | [ctdb](https://patchblox.com/security/data/product/linux/ctdb.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [libnetapi](https://patchblox.com/security/data/product/linux/libnetapi.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [libnetapi-devel](https://patchblox.com/security/data/product/linux/libnetapi-devel.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [libsmbclient](https://patchblox.com/security/data/product/linux/libsmbclient.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [libsmbclient-devel](https://patchblox.com/security/data/product/linux/libsmbclient-devel.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [libwbclient](https://patchblox.com/security/data/product/linux/libwbclient.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [libwbclient-devel](https://patchblox.com/security/data/product/linux/libwbclient-devel.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [python3-samba](https://patchblox.com/security/data/product/linux/python3-samba.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [python3-samba-dc](https://patchblox.com/security/data/product/linux/python3-samba-dc.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [python3-samba-devel](https://patchblox.com/security/data/product/linux/python3-samba-devel.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [python3-samba-test](https://patchblox.com/security/data/product/linux/python3-samba-test.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [samba](https://patchblox.com/security/data/product/linux/samba.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [samba-client](https://patchblox.com/security/data/product/linux/samba-client.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [samba-client-libs](https://patchblox.com/security/data/product/linux/samba-client-libs.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [samba-common](https://patchblox.com/security/data/product/linux/samba-common.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [samba-common-libs](https://patchblox.com/security/data/product/linux/samba-common-libs.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [samba-common-tools](https://patchblox.com/security/data/product/linux/samba-common-tools.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [samba-dc-libs](https://patchblox.com/security/data/product/linux/samba-dc-libs.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [samba-dcerpc](https://patchblox.com/security/data/product/linux/samba-dcerpc.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [samba-devel](https://patchblox.com/security/data/product/linux/samba-devel.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [samba-krb5-printing](https://patchblox.com/security/data/product/linux/samba-krb5-printing.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [samba-ldb-ldap-modules](https://patchblox.com/security/data/product/linux/samba-ldb-ldap-modules.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [samba-libs](https://patchblox.com/security/data/product/linux/samba-libs.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [samba-pidl](https://patchblox.com/security/data/product/linux/samba-pidl.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [samba-test](https://patchblox.com/security/data/product/linux/samba-test.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [samba-test-libs](https://patchblox.com/security/data/product/linux/samba-test-libs.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [samba-tools](https://patchblox.com/security/data/product/linux/samba-tools.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [samba-usershares](https://patchblox.com/security/data/product/linux/samba-usershares.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [samba-vfs-iouring](https://patchblox.com/security/data/product/linux/samba-vfs-iouring.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [samba-winbind](https://patchblox.com/security/data/product/linux/samba-winbind.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [samba-winbind-clients](https://patchblox.com/security/data/product/linux/samba-winbind-clients.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [samba-winbind-krb5-locator](https://patchblox.com/security/data/product/linux/samba-winbind-krb5-locator.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [samba-winbind-modules](https://patchblox.com/security/data/product/linux/samba-winbind-modules.md) | RHEL 8 | 0:4.19.4-16.el8_10 | | [samba-winexe](https://patchblox.com/security/data/product/linux/samba-winexe.md) | RHEL 8 | 0:4.19.4-16.el8_10 | ## CVEs this fix closes | CVE | Priority | Title | CVSS | EPSS | Exploitation | |---|---|---|---:|---:|---| | [CVE-2026-4480](https://patchblox.com/security/data/cve/CVE-2026-4480.md) | Urgent | samba: A flaw was found in the Samba printing subsystem | 9.0 | 0.1393 | | | [CVE-2026-4408](https://patchblox.com/security/data/cve/CVE-2026-4408.md) | Urgent | samba: A flaw was found in Samba | 9.8 | 0.0250 | | | [CVE-2026-2340](https://patchblox.com/security/data/cve/CVE-2026-2340.md) | High | samba: A flaw was found in Samba’s vfs_worm module | 9.0 | 0.0094 | | | [CVE-2026-1933](https://patchblox.com/security/data/cve/CVE-2026-1933.md) | High | samba: A flaw was found in Samba’s handling of NTFS-style reparse points on shares configured with read only = yes | 9.0 | 0.0086 | | | [CVE-2026-3012](https://patchblox.com/security/data/cve/CVE-2026-3012.md) | High | samba: A flaw was found in Samba’s certificate auto-enrollment Group Policy handling | 9.0 | 0.0026 | | --- Data as of 2026-11-07T12:40:37Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo