CVE-2026-35549
CWE-789Published: April 3, 2026· Updated: Apr 3, 2026
Official Description
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.
Technical Analysis
CVE-2026-35549 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.
CVSS v3.1 Vector Breakdown
Exploit & PoC Resources
All References (1)
Quick Facts
Related CVEs (CWE-789)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-35549 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts