{"id":"CVE-2026-111279","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-111279","generatedAt":"2026-10-28T01:11:35.483Z","title":"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.","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.","published":"2026-10-15T22:19:29.000Z","lastModified":"2026-10-16T20:17:20.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":8.7,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-789"],"affected":[],"epss":{"score":0.00589,"percentile":0.47872,"date":"2026-10-26","history":[{"date":"2026-10-16","score":0.00485,"percentile":0.4033}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.59%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-15T22:19:29.000Z","detail":{"score":"8.7","severity":"HIGH","publishedAt":"2026-10-15T22:19:29.157Z"},"summary":"New CVE, high severity (CVSS 8.7)."}],"references":[{"url":"https://github.com/dragonflydb/dragonfly","source":"disclosure@vulncheck.com"},{"url":"https://github.com/dragonflydb/dragonfly/blob/8ce4bbb106586057fbd85f71ed353c60d0d5bf87/src/server/hset_family.cc#L1436-L1483","source":"disclosure@vulncheck.com"},{"url":"https://github.com/dragonflydb/dragonfly/blob/8ce4bbb106586057fbd85f71ed353c60d0d5bf87/src/server/set_family.cc#L957-L984","source":"disclosure@vulncheck.com"},{"url":"https://github.com/dragonflydb/dragonfly/blob/8ce4bbb106586057fbd85f71ed353c60d0d5bf87/src/server/zset_family.cc#L1519-L1522","source":"disclosure@vulncheck.com"},{"url":"https://github.com/dragonflydb/dragonfly/issues/8578","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/dragonfly-through-2.0.2-unbounded-memory-allocation-via-negative-count-in-hrandfield-zrandmember-and-srandmember","source":"disclosure@vulncheck.com"},{"url":"https://github.com/dragonflydb/dragonfly/issues/8578","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-111279","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}