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Fencer Intel
medium 6.5

CVE-2026-35549 json

An issue was discovered in MariaDB Server before 11.4.10, 11.5.x through 11.8.x before 11.8.6, and 12.x before 12.2.2.

published 7mo ago modified 3d ago also BIT-mariadb-2026-35549 , BIT-mariadb-min-2026-35549 , BIT-mysql-client-2026-35549 , EUVD-2026-18595

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 18%
public exploits
0
none known

Summary

An issue was discovered in MariaDB Server before 11.4.10, 11.5.x through 11.8.x before 11.8.6, and 12.x before 12.2.2. If the caching_sha2_password authentication plugin is installed, and some user accounts are configured to use it, a large packet can crash the server because sha256_crypt_r uses alloca.

Patch / fix

  • bitnami mariadb 11.4.10, 11.8.6, 12.2.2
  • bitnami mariadb-min 11.4.10, 11.8.6, 12.2.2
  • bitnami mysql-client 11.4.10, 11.8.6, 12.2.2
  • MariaDB MariaDB 11.4.10, 11.8.6, 12.2.2
  • mariadb Debian 13 1:11.8.6-0+deb13u1
  • mariadb Debian 14 1:11.8.6-1

debian advisories DEBIAN-CVE-2026-35549

  • mariadb SLES for SAP applications 16.0, SLES 16.0 11.8.8-160000.1.1
  • mariadb SLE Module for Server Applications 15 SP7, SLE Module for Package Hub 15 SP7 11.8.8-150700.3.15.1

suse advisories SUSE-SU-2026:22095-1SUSE-SU-2026:2330-1

  • mariadb openSUSE Leap 16.0 11.8.8-160000.1.1
  • mariadb openSUSE Tumbleweed 11.8.7-1.1

opensuse advisories openSUSE-SU-2026:20933-1openSUSE-SU-2026:10897-1

Is CVE-2026-35549 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-35549 updated cvss 6.5

MariaDB Server: MariaDB Server: Denial of Service via large packet with caching_sha2_password authentication plugin

  • Red Hat Enterprise Linux 7 mariadb, mariadb-libs, mariadb-test, mariadb-bench, mariadb-server, mariadb-embedded
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 Judy, galera, mariadb, mariadb-pam, mariadb-test, mariadb-backup, +8 more Red Hat Enterprise Linux 9 mariadb, mariadb-pam, mariadb-test, mariadb-backup, mariadb-common, mariadb-errmsg, +6 more Red Hat Enterprise Linux 10 mariadb11.8, mariadb10.11
    affected: workaround, no fix available “Fix deferred”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
7mo ago

Exploit prediction

0.27% chance of exploitation in the next 30 days, higher than 18% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
OSV 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
bitnami mariadb
<11.4.10
>=11.5.0, <11.8.6
>=12.0.0, <12.2.2
11.4.10
11.8.6
12.2.2
bitnami mariadb-min
<11.4.10
>=11.5.0, <11.8.6
>=12.0.0, <12.2.2
11.4.10
11.8.6
12.2.2
bitnami mysql-client
<11.4.10
>=11.5.0, <11.8.6
>=12.0.0, <12.2.2
11.4.10
11.8.6
12.2.2

Affected products

  • MariaDB MariaDB

Classification

Weakness
  • CWE-789 Memory Allocation with Excessive Size Value
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.