CVE-2026-21384
MediumCVSS 5.3Exploitation Probability (EPSS)
Low risk0th percentile - higher than 0% of all known CVEs
Summary
Memory corruption occurs when updating prepared commands with invalid port indices from user space input that exceed supported read client limits.
Risk Assessment
An attacker could exploit this vulnerability to cause a system crash or potentially execute arbitrary code, compromising service integrity and availability.
Recommendation
Immediately update the affected component to the latest patched version and restrict access to interfaces accepting user input.
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- CVE-2026-21379High
The vulnerability causes memory corruption when allocating memory with sizes exceeding the maximum allowed value. This can lead to unpredictable application behavior.
- CVE-2026-21370Medium
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- CVE-2026-35505High
An unauthenticated remote attacker can repeatedly send crafted connection requests to leak memory. In single-process deployments the memory grows until the service is killed and the port stops responding until restart.
- CVE-2026-9718Medium
A CWE-617 Reachable Assertion vulnerability allows an authenticated attacker to trigger a denial-of-service (DoS) condition by sending a specially crafted request to a vulnerable network-exposed service. This impacts system availability.
Original NVD description (English source)
Memory Corruption when updating prepared commands with invalid port indices based on user space input exceeds supported read client limits.

