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TI-2026-70113 Aliases CVE-2026-107823

Privilege escalation in MariaDB server via crafted view usernames

Priority LOW 35CWE-116Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 1 fixed, 5 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

MariaDB server versions from 10.6.1 before 10.6.28, from 10.11.1 before 10.11.19, from 11.4.1 before 11.4.13, from 11.8.1 before 11.8.9, from 12.3.1 before 12.3.3, and from 13.0.1 before 13.0.2 are affected. The view FRM parser does not safely encode embedded newlines in usernames (CWE-144). An account with CREATE USER and CREATE VIEW WITH GRANT OPTION can create a username that makes the parser treat part of it as security metadata, potentially escalating database privileges.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

MariaDB server is a community developed fork of MySQL server. From 10.6.1 until 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2, the MariaDB view FRM parser did not safely encode embedded newline characters in a username. An account with CREATE USER and CREATE VIEW WITH GRANT OPTION could create a crafted username containing additional view metadata, causing the parser to interpret part of the username as security metadata and potentially escalating database privileges. This issue is fixed in versions 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00786 56th percentileScored 2026-11-07
Fix Partial server (MariaDB): 10.6.28, 10.11.19, 11.4.13 +3Red Hat: 3 advisoriesRed Hat: 1 fixed, 5 without a fix

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 10.6.28; 10.11.1 to before 10.11.19; 11.4.1 to before 11.4.13; 11.8.1 to before 11.8.9; 12.3.1 to before 12.3.3; 13.0.1 to before 13.0.210.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, 13.0.2Patch availableCNA
  • server VendorMariaDB Affected 10.6.1 to before 10.6.28; 10.11.1 to before 10.11.19; 11.4.1 to before 11.4.13; 11.8.1 to before 11.8.9; 12.3.1 to before 12.3.3; 13.0.1 to before 13.0.2 Fixed in 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, 13.0.2 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*10.6.1 to before 10.6.28; 10.11.1 to before 10.11.19; 11.4.1 to before 11.4.13; 11.8.1 to before 11.8.9; 12.3.1 to before 12.3.3; 13.0.1 to before 13.0.2VulnerableMariaDB
  • cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:* Versions 10.6.1 to before 10.6.28; 10.11.1 to before 10.11.19; 11.4.1 to before 11.4.13; 11.8.1 to before 11.8.9; 12.3.1 to before 12.3.3; 13.0.1 to before 13.0.2 Vulnerable ·MariaDB

Remediation

MariaDB server is fixed in 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3 and 13.0.2. Red Hat fixes Red Hat Hardened Images in RHSA-2026:84701, RHSA-2026:84689 and RHSA-2026:83108. Red Hat lists no available plan for Red Hat Enterprise Linux 7, 8, 9 and 10 or Red Hat OpenStack Platform 13 (Queens).

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA server (MariaDB) Fixed in 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, 13.0.2

Red Hat 3 advisories

  • RHSA-2026:84701 Released 2026-10-19 · Red Hat rating Important
    Red Hat Hardened Images RPMs Security Update
    • Red Hat Hardened Images mariadb10.11-10.11.18-4.1.1.hum1@aarch64, mariadb10.11-10.11.18-4.1.1.hum1@s390x, mariadb10.11-10.11.18-4.1.1.hum1@src +47
  • RHSA-2026:84689 Released 2026-10-19 · Red Hat rating Important
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images mariadb11.8-3:11.8.9-0.1.hum1@aarch64, mariadb11.8-3:11.8.9-0.1.hum1@s390x, mariadb11.8-3:11.8.9-0.1.hum1@src +47
  • RHSA-2026:83108 Released 2026-10-14 · Red Hat rating Important
    Red Hat Hardened Images RPMs Security Update
    • Red Hat Hardened Images mariadb10.11-10.11.18-4.1.hum1@aarch64, mariadb10.11-10.11.18-4.1.hum1@s390x, mariadb10.11-10.11.18-4.1.hum1@src +47

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 10AffectedNo fix yet
Red Hat Enterprise Linux 7AffectedNo fix yet
Red Hat Enterprise Linux 8AffectedNo fix yet
Red Hat Enterprise Linux 9AffectedNo fix yet
Red Hat OpenStack Platform 13 (Queens)AffectedNo fix yet
Red Hat Hardened ImagesFixed RHSA-2026:83108, RHSA-2026:84689, RHSA-2026:84701

Timeline

  1. 2026-10-10 Threatist record created from CVE-2026-107823
  2. 2026-10-10 Affected versions changed · Red Hat
  3. 2026-10-10 CVSS score added · Red Hat
  4. 2026-10-11 Priority changed: MEDIUM → LOW
  5. 2026-10-13 CISA SSVC decision points changed
  6. 2026-10-16 EPSS moved to the 50th–90th percentile
  7. 2026-10-16 Fix available: RHSA-2026:83108 · Red Hat
  8. 2026-10-16 Fix available: Red Hat Hardened Images · Red Hat
  9. 2026-10-19 Fix available: RHSA-2026:84701 · Red Hat
  10. 2026-10-20 Fix available: RHSA-2026:84689 · Red Hat
  11. 2026-10-20 Affected versions changed · Red Hat

References

Patch 1

Advisory 1

Other 7

  • 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