{"cve":"CVE-2026-85058","nvd":{"published":"2026-09-18T18:17:17.447","modified":"2026-09-24T21:25:27.050","status":"Deferred","description":"Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, PostOffice.publishWill publishes a client-controlled Last Will message through publish2Subscribers without invoking the authorizator.canWrite check used by normal PUBLISH paths. When anonymous access is enabled and topic ACLs restrict writes, a remote client can set an ACL-protected topic as the Last Will Topic during CONNECT and perform an abnormal client disconnect, causing the broker to inject attacker-controlled messages into a topic for which the client lacks write permission. This issue is fixed in version 0.18.1.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","score":7.5},"cwes":["CWE-862"],"references":["https://github.com/moquette-io/moquette/commit/e23df019f6a11e22c7d2047d4f86d07095466c97","https://github.com/moquette-io/moquette/commit/f5a323fe782d1505c0097498cb22eb6ec6c96973","https://github.com/moquette-io/moquette/releases/tag/v0.18.1","https://github.com/moquette-io/moquette/security/advisories/GHSA-9jjc-fw8x-fmwx","https://github.com/moquette-io/moquette/security/advisories/GHSA-9jjc-fw8x-fmwx"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:55:23.253742848+00:00"},"epss":{"cve":"CVE-2026-85058","score":0.00451,"percentile":0.39204,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-9jjc-fw8x-fmwx","url":"https://osv.dev/vulnerability/GHSA-9jjc-fw8x-fmwx","summary":"io.moquette:moquette-broker has a Missing Authorization issue","modified":"2026-09-18T18:15:06.665588978Z","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."]}