CVE-2026-111279 Details
Description
Dragonfly through 2.0.2 contains an unbounded memory allocation vulnerability that allows unauthenticated clients to exhaust memory by passing a negative COUNT to HRANDFIELD, ZRANDMEMBER or SRANDMEMBER. Attackers can send a single command against a one-element key with a huge negative COUNT to trigger the OOM killer, terminating the instance for all clients.
A vulnerability exists in Dragonfly versions through 2.0.2, allowing unbounded memory allocation that can lead to denial-of-service. This issue arises when unauthenticated clients pass a negative COUNT to the HRANDFIELD, ZRANDMEMBER, or SRANDMEMBER commands. The vulnerability can be exploited by sending a single command with a large negative COUNT against a one-element key, causing the server to exhaust memory and trigger the out-of-memory killer, which terminates the instance for all clients.
Dragonfly has released a patch for this vulnerability in version 2.0.3. Users are advised to update to this version.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 15, 2026CISA-ADP
Assessed Oct 16, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-789 | Memory Allocation with Excessive Size Value | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Dragonfly | <= 2.0.2 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 16, 2026 | CVE Modified | CISA-ADP |
| Oct 15, 2026 | New CVE Received | [email protected] |