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TI-2026-35599 Aliases CVE-2026-48163

MariaDB: wsrep SST unsafe parameter handling on the donor side (rsync)

Priority LOW 39CWE-78Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
High
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-78.

Summary

MariaDB server is a community developed fork of MySQL server. From versions 10.6.1 to before 10.6.27, 10.11.1 to before 10.11.18, 11.4.1 to before 11.4.12, 11.8.1 to before 11.8.8, and 12.3.1, during the SST the donor node is interpolating parameters that the joiner sent into the command line. Not all parameters were properly validated which could allow a malicious joiner to execute arbitrary shell commands on the donor side via the rsync SST method. This issue has been patched in versions 10.6.27, 10.11.18, 11.4.12, 11.8.8, and 12.3.2.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00914 60th percentileScored 2026-11-07
Fix Fixed server (MariaDB): 10.6.27, 10.11.18, 11.4.12 +2Red Hat: 8 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MariaDBserver10.6.1 to before 10.6.27; 10.11.1 to before 10.11.18; 11.4.1 to before 11.4.12; 11.8.1 to before 11.8.8; 12.3.1 to before 12.3.210.6.27, 10.11.18, 11.4.12, 11.8.8, 12.3.2Patch availableCNA
  • server VendorMariaDB Affected 10.6.1 to before 10.6.27; 10.11.1 to before 10.11.18; 11.4.1 to before 11.4.12; 11.8.1 to before 11.8.8; 12.3.1 to before 12.3.2 Fixed in 10.6.27, 10.11.18, 11.4.12, 11.8.8, 12.3.2 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*10.6.1 to before 10.6.27; 10.11.1 to before 10.11.18; 11.4.1 to before 11.4.12; 11.8.1 to before 11.8.8VulnerableMariaDB
cpe:2.3:a:mariadb:mariadb:12.3.1:*:*:*:*:*:*:*12.3.1VulnerableMariaDB
  • cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:* Versions 10.6.1 to before 10.6.27; 10.11.1 to before 10.11.18; 11.4.1 to before 11.4.12; 11.8.1 to before 11.8.8 Vulnerable ·MariaDB
  • cpe:2.3:a:mariadb:mariadb:12.3.1:*:*:*:*:*:*:* Versions 12.3.1 Vulnerable ·MariaDB

Remediation

  • Fix · CNA server (MariaDB) Fixed in 10.6.27, 10.11.18, 11.4.12, 11.8.8, 12.3.2

Red Hat 8 advisories

  • RHSA-2026:49522 Released 2026-08-03 · Red Hat rating Important
    mariadb10.11 security update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) mariadb-3:10.11.18-1.el10_0, mariadb-backup-3:10.11.18-1.el10_0, mariadb-client-utils-3:10.11.18-1.el10_0 +13
  • RHSA-2026:33482 Released 2026-06-30 · Red Hat rating Important
    mariadb:10.11 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 9) galera-26.4.27-1.module+el9.8.0+24388+85f1c439.aarch64::mariadb:10.11, galera-26.4.27-1.module+el9.8.0+24388+85f1c439.ppc64le::mariadb:10.11, galera-26.4.27-1.module+el9.8.0+24388+85f1c439.s390x::mariadb:10.11 +47
  • RHSA-2026:33481 Released 2026-06-30 · Red Hat rating Important
    mariadb:11.8 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 9) galera-26.4.27-1.module+el9.8.0+24389+c97c30be.aarch64::mariadb:11.8, galera-26.4.27-1.module+el9.8.0+24389+c97c30be.ppc64le::mariadb:11.8, galera-26.4.27-1.module+el9.8.0+24389+c97c30be.s390x::mariadb:11.8 +47
Show 5 more Red Hat advisories
  • RHSA-2026:33464 Released 2026-06-30 · Red Hat rating Important
    mariadb:10.11 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 8) Judy-1.0.5-18.module+el8.10.0+21221+7bee72c1.aarch64::mariadb:10.11, Judy-1.0.5-18.module+el8.10.0+21221+7bee72c1.ppc64le::mariadb:10.11, Judy-1.0.5-18.module+el8.10.0+21221+7bee72c1.s390x::mariadb:10.11 +47
  • RHSA-2026:33412 Released 2026-06-30 · Red Hat rating Important
    galera and mariadb11.8 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 10) mariadb11.8-3:11.8.8-1.el10_2, mariadb11.8-backup-3:11.8.8-1.el10_2, mariadb11.8-client-utils-3:11.8.8-1.el10_2 +12
  • RHSA-2026:33093 Released 2026-06-29 · Red Hat rating Important
    mariadb10.11 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 10) mariadb-3:10.11.18-1.el10_2, mariadb-backup-3:10.11.18-1.el10_2, mariadb-client-utils-3:10.11.18-1.el10_2 +13
  • RHSA-2026:25145 Released 2026-06-10 · Red Hat rating Important
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images mariadb10.11-10.11.18-1.hum1@aarch64, mariadb10.11-10.11.18-1.hum1@src, mariadb10.11-10.11.18-1.hum1@x86_64 +37
  • RHSA-2026:25143 Released 2026-06-10 · Red Hat rating Important
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images mariadb-11.8.8-1.hum1@aarch64, mariadb-11.8.8-1.hum1@x86_64, mariadb-backup-11.8.8-1.hum1@aarch64 +37

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:33093, RHSA-2026:33412
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2026:33464
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:33481, RHSA-2026:33482
Red Hat Enterprise Linux AppStream EUS (v. 10.0)Fixed RHSA-2026:49522
Red Hat Hardened ImagesFixed RHSA-2026:25143, RHSA-2026:25145
Not affected: 3 products
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 9
  • Red Hat Enterprise Linux AppStream (v. 10)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-48163

References

Advisory 2

  • TI-2023-11776 MariaDB v10.5 was discovered to contain a remote code execution (RCE) vulnerability via… CVSS 3.1CRITICAL 9.8
  • TI-2016-05707 Oracle MySQL through 5.5.52, 5.6.x through 5.6.33, and 5.7.x through 5.7.15; MariaDB… CVSS 3.0CRITICAL 9.8
  • TI-2022-00687 Infinite loop in BN_mod_sqrt() reachable when parsing certificates CVSS 3.1HIGH 7.5
  • TI-2014-00217 OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h does not properly… CVSS 3.1HIGH 7.4
  • TI-2014-00188 The dtls1_reassemble_fragment function in d1_both.c in OpenSSL before 0.9.8za, 1.0.0… CVSS 2.0MEDIUM 6.8
  • TI-2018-15259 zlib before 1.2.12 allows memory corruption when deflating (i.e., when compressing) if… CVSS 3.1HIGH 7.5
See all 429 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences