CVE-2026-111279: Memory Allocation with Excessive Size Value in dragonflydb dragonfly
Description
DragonflyDB versions up to 2.0.2 have a vulnerability where unauthenticated clients can cause unbounded memory allocation by passing a negative COUNT parameter to certain commands. This can exhaust system memory and trigger the out-of-memory (OOM) killer, terminating the database instance and disrupting service for all clients.
CVSS v4.0
Score 8.7high
Affected software
dragonflydb
dragonfly
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-111279 describes an unbounded memory allocation vulnerability in DragonflyDB through version 2.0.2. The flaw occurs when unauthenticated clients issue HRANDFIELD, ZRANDMEMBER, or SRANDMEMBER commands with a negative COUNT value. This negative COUNT leads to excessive memory allocation attempts, which can exhaust system memory and cause the OOM killer to terminate the DragonflyDB process, resulting in denial of service.
Potential Impact
An attacker can cause a denial of service by sending a single malicious command with a large negative COUNT value to a key containing one element. This triggers excessive memory allocation, exhausting system memory and causing the DragonflyDB instance to be terminated, disrupting availability for all clients.
Mitigation Recommendations
No vendor advisory or patch information is provided. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to DragonflyDB instances to trusted clients and monitor for anomalous commands with negative COUNT values.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-10-15T19:46:06.408Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ad14e2f2cdf04f6566084f7
Added to database: 10/15/2026, 22:05:35 UTC
Last enriched: 10/15/2026, 22:34:01 UTC
Last updated: 10/15/2026, 22:34:01 UTC
Views: 4
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.