Security
Critical Pre-Auth MongoDB Flaw (CVE-2026-118383) Can Crash Lagging Servers on Failover
The Hacker News·November 12, 2026·1 min read
A critical pre-authentication flaw in MongoDB Server, tracked as CVE-2026-118383, lets an unauthenticated attacker send two requests to crash a database server, but only if that server is later promoted to primary while missing recent changes. MongoDB released fixed versions earlier this week. Affected servers are members of a replica set.
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