CVE-2018-12551
- Source
- https://cve.org/CVERecord?id=CVE-2018-12551
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-12551.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2018-12551
- Downstream
- Related
- Published
- 2019-03-27T18:29:00.367Z
- Modified
- 2026-05-14T06:30:22.786974322Z
- Severity
-
- 8.1 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
When Eclipse Mosquitto version 1.0 to 1.5.5 (inclusive) is configured to use a password file for authentication, any malformed data in the password file will be treated as valid. This typically means that the malformed data becomes a username and no password. If this occurs, clients can circumvent authentication and get access to the broker by using the malformed username. In particular, a blank line will be treated as a valid empty username. Other security measures are unaffected. Users who have only used the mosquitto_passwd utility to create and modify their password files are unaffected by this vulnerability.
- References
Affected packages
Git / github.com/eclipse-mosquitto/mosquitto
Affected ranges
- Type
- GIT
- Repo
- https://github.com/eclipse-mosquitto/mosquitto
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedLast affected
- Database specific
{ "cpe": "cpe:2.3:a:eclipse:mosquitto:*:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "1.0" }, { "last_affected": "1.5.5" } ], "source": "CPE_FIELD" }