Bug 2454731 (CVE-2026-35549) - CVE-2026-35549 MariaDB Server: MariaDB Server: Denial of Service via large packet with caching_sha2_password authentication plugin
Summary: CVE-2026-35549 MariaDB Server: MariaDB Server: Denial of Service via large pa...
Keywords:
Status: NEW
Alias: CVE-2026-35549
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2455538 2455537
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-03 06:01 UTC by OSIDB Bzimport
Modified: 2026-04-06 18:33 UTC (History)
0 users

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Description OSIDB Bzimport 2026-04-03 06:01:19 UTC 
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.
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