Vulnerability in Dragonflydb Dragonfly
CVE-2026-111279
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/dragonflydb/dragonfly/issues/8578 (issue-tracking)
- github.com/dragonflydb/dragonfly/blob/8ce4bbb106586057fbd85f71ed353c60d0d5bf87/… (technical-description)
- github.com/dragonflydb/dragonfly/blob/8ce4bbb106586057fbd85f71ed353c60d0d5bf87/… (technical-description)
- github.com/dragonflydb/dragonfly/blob/8ce4bbb106586057fbd85f71ed353c60d0d5bf87/… (technical-description)
- github.com/dragonflydb/dragonfly (product)
- www.vulncheck.com/advisories/dragonfly-through-2.0.2-unbounded-memory-allocatio… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-111279?
- CVE-2026-111279 is a high-severity vulnerability in Dragonflydb Dragonfly, classified under CWE-789. CVSS score: 7.5/10. Published 2026-10-15.
- How severe is CVE-2026-111279?
- High severity. CVSS v3 base score is 7.5 out of 10.