{"id":"CVE-2026-95844","title":"Moquette is a lightweight Java MQTT broker","summary":"Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, Moquette does not limit the depth of topic names and topic filters before processing them through recursive CTrie insertion and matching operations. A remote client can publish…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-674"],"vendor":"moquette","product":"moquette","affected":["moquette < 0.18.1"],"patched":["moquette 0.18.1"],"published":"2026-09-23","updated":"2026-09-29","sourceUpdated":"2026-09-29T02:16:55.810","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-95844","references":[{"url":"https://github.com/moquette-io/moquette/commit/ca17e0be19e86d5e291f4532dfdc94616c8e0049","label":"security-advisories@github.com"},{"url":"https://github.com/moquette-io/moquette/releases/tag/v0.18.1","label":"security-advisories@github.com"},{"url":"https://github.com/moquette-io/moquette/security/advisories/GHSA-5f42-97gr-vfhq","label":"security-advisories@github.com"},{"url":"https://github.com/moquette-io/moquette/security/advisories/GHSA-5f42-97gr-vfhq","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-29T02:02:23.767947Z"},"scores":{"nvd":7.5,"cna":8.7},"ingestedAt":"2026-09-23T17:28:14.850Z","epss":0.00423,"epssPercentile":0.3646,"slug":"CVE-2026-95844","body":"## Overview\n\nMoquette is a lightweight Java MQTT broker. Prior to 0.18.1, Moquette does not limit the depth of topic names and topic filters before processing them through recursive CTrie insertion and matching operations. A remote client can publish or subscribe with a deeply nested topic, causing a StackOverflowError that disrupts session processing and can deny service to broker clients. This issue is fixed in version 0.18.1.\n\n## Affected\n\n- `moquette < 0.18.1`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `moquette 0.18.1`","depth":"midnight","depthScore":53,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":212189,"id":"CVE-2026-95844","ts":1790648774905,"field":"exploit_available","old":"false","new":"true"},{"seq":211999,"id":"CVE-2026-95844","ts":1790612143536,"field":"cvss","old":"8.7","new":"7.5"}]}