{"cve":"CVE-2026-95843","nvd":{"published":"2026-09-23T17:17:21.130","modified":"2026-09-25T13:34:44.800","status":"Analyzed","description":"Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, PostOffice.subscribe parses a shared-subscription filter through SharedSubscriptionUtils.extractShareName before validating the complete $share/{shareName}/{topicFilter} structure. A remote client can send a filter such as $share/grp without a topic-filter portion, causing a StringIndexOutOfBoundsException while calculating the share name. The exception terminates command handling on the shared session event loop and can deny service to other client sessions assigned to that loop. This issue is fixed in version 0.18.1.","cvss_v4":{"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","score":8.7},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-20"],"references":["https://github.com/moquette-io/moquette/commit/affdc71fdba92dc020421678970ae70518fb6da2","https://github.com/moquette-io/moquette/pull/962","https://github.com/moquette-io/moquette/releases/tag/v0.18.1","https://github.com/moquette-io/moquette/security/advisories/GHSA-5f42-97gr-vfhq","https://github.com/moquette-io/moquette/security/advisories/GHSA-5f42-97gr-vfhq"],"products":["moquette:moquette"],"source":"nvd","synced_at":"2026-10-19T22:56:02.509636177+00:00"},"epss":{"cve":"CVE-2026-95843","score":0.00429,"percentile":0.37153,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-5f42-97gr-vfhq","url":"https://osv.dev/vulnerability/GHSA-5f42-97gr-vfhq","summary":"Moquette: Pattern-ACL wildcard injection (cross-tenant authorization bypass) plus a remote-unauthenticated DoS cluster, a Will-message authorization bypass, and a cross-session durable-corruption bug","modified":"2026-10-19T19:30:12.063094642Z","packages":[{"ecosystem":"Maven","name":"io.moquette:moquette-broker","purl":"pkg:maven/io.moquette/moquette-broker","ranges":["<0.18.1"],"fixed":["0.18.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}