CVE-2026-111279
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductDragonfly
PublishedOct 15, 2026
First seenOct 15, 2026
Weakness typeCWE-789CWE-789
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| dragonflydb dragonfly | v ≤ 2.0.2 | — |
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