{"id":"CVE-2025-62723","state":"PUBLISHED","title":"FlashMQ does not release memory of queued QoS messages","description":"FlashMQ is a MQTT broker/server, designed for multi-CPU environments. Prior to version 1.23.2, any authenticated user can create sessions and have them collect QoS messages. When not sent to a client, these are then not released upon (eventual) session expiration. Version 1.23.2 fixes the issue.","publishedAt":"2025-10-24T20:16:34.047Z","updatedAt":"2025-10-24T20:32:00.596Z","severity":{"score":4.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","source":"GitHub_M"},"assigner":"GitHub_M","products":["halfgaar FlashMQ"],"affected":[{"vendor":"halfgaar","product":"FlashMQ","versions":[{"version":"< 1.23.2","status":"affected"}]}],"references":["https://github.com/halfgaar/FlashMQ/security/advisories/GHSA-7mhp-22q4-r6vv","https://github.com/halfgaar/FlashMQ/issues/154","https://github.com/halfgaar/FlashMQ/commit/e86c49360ef4387440c97f591770cdb9284b4ee9"],"weaknesses":["CWE-772"],"ingestedAt":"2026-10-29T20:09:48.677Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/62xxx/CVE-2025-62723.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-62723","state":"PUBLISHED","datePublished":"2025-10-24T20:16:34.047Z","dateUpdated":"2025-10-24T20:32:00.596Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2025-10-20T19:41:22.741Z"},"containers":{"cna":{"title":"FlashMQ does not release memory of queued QoS messages","descriptions":[{"lang":"en","value":"FlashMQ is a MQTT broker/server, designed for multi-CPU environments. Prior to version 1.23.2, any authenticated user can create sessions and have them collect QoS messages. When not sent to a client, these are then not released upon (eventual) session expiration. Version 1.23.2 fixes the issue."}],"affected":[{"vendor":"halfgaar","product":"FlashMQ","versions":[{"version":"< 1.23.2","status":"affected"}]}],"references":[{"url":"https://github.com/halfgaar/FlashMQ/security/advisories/GHSA-7mhp-22q4-r6vv","name":"https://github.com/halfgaar/FlashMQ/security/advisories/GHSA-7mhp-22q4-r6vv","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/halfgaar/FlashMQ/issues/154","name":"https://github.com/halfgaar/FlashMQ/issues/154","tags":["x_refsource_MISC"]},{"url":"https://github.com/halfgaar/FlashMQ/commit/e86c49360ef4387440c97f591770cdb9284b4ee9","name":"https://github.com/halfgaar/FlashMQ/commit/e86c49360ef4387440c97f591770cdb9284b4ee9","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-772","lang":"en","description":"CWE-772: Missing Release of Resource after Effective Lifetime","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2025-10-24T20:16:34.047Z"},"source":{"advisory":"GHSA-7mhp-22q4-r6vv","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-10-24T20:31:44.102351Z","id":"CVE-2025-62723","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-24T20:32:00.596Z"}}]}}}