In Mosquitto before 1.4.12, pattern based ACLs can be bypassed by clients that set their username/client id to '#' or '+'
Published Sep 11, 2017
6.5
MEDIUMCVSS 3.0
EPSS 2.47%
Description
In Mosquitto before 1.4.12, pattern based ACLs can be bypassed by clients that set their username/client id to '#' or '+'. This allows locally or remotely connected clients to access MQTT topics that they do have the rights to. The same issue may be present in third party authentication/access control plugins for Mosquitto.
Affected products
-
- Version 0.15 to 1.4.11 inclusiveStatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Eclipse Foundation | Mosquitto | n/a |
|
Configuration 2
- 8.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
AV:N/AC:L/Au:S/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (24 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.47% (0.02472) | 83.95th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.47% (0.02472) | 82.38th | v5 (v2026.06.15) |
| May 31, 2026 | 3.99% (0.03992) | 88.61th | v4 (v2025.03.14) |
| Nov 21, 2025 | 1.11% (0.01110) | 77.49th | v4 (v2025.03.14) |
| Nov 18, 2025 | 8.56% (0.08558) | 91.53th | v4 (v2025.03.14) |
| Mar 30, 2025 | 1.11% (0.01110) | 76.17th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.25% (0.02254) | 74.30th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.17% (0.01169) | 77.18th | v4 (v2025.03.14) |
| Dec 17, 2024 | 9.16% (0.09165) | 94.65th | v3 (v2023.03.01) |
| Nov 3, 2024 | 22.16% (0.22159) | 96.61th | v3 (v2023.03.01) |
| Sep 17, 2024 | 28.35% (0.28352) | 96.91th | v3 (v2023.03.01) |
| Jul 21, 2024 | 22.16% (0.22159) | 96.53th | v3 (v2023.03.01) |
| Dec 16, 2023 | 28.35% (0.28352) | 96.40th | v3 (v2023.03.01) |
| Apr 7, 2023 | 35.38% (0.35376) | 96.48th | v3 (v2023.03.01) |
| Mar 14, 2023 | 58.25% (0.58247) | 97.14th | v3 (v2023.03.01) |
| Mar 7, 2023 | 65.18% (0.65177) | 97.28th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.95% (0.00950) | 30.63th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00950) | 28.61th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00950) | 13.46th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.04% (0.01040) | 28.32th | v1 |
| Jan 6, 2022 | 1.04% (0.01040) | 27.69th | v1 |
| Sep 1, 2021 | 1.04% (0.01040) | 64.49th | v1 |
| Apr 14, 2021 | 1.04% (0.01040) | 0.00th | v1 |
References (4)
- http://mosquitto.org/2017/05/security-advisory-cve-2017-7650/ x_refsource_CONFIRMPatchVendor Advisory
- http://www.debian.org/security/2017/dsa-3865 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.securityfocus.com/bid/98741 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=516765 x_refsource_CONFIRMExploitThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://mosquitto.org/2017/05/security-advisory-cve-2017-7650/ | x_refsource_CONFIRMPatchVendor Advisory | |
| http://www.debian.org/security/2017/dsa-3865 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| http://www.securityfocus.com/bid/98741 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://bugs.eclipse.org/bugs/show_bug.cgi?id=516765 | x_refsource_CONFIRMExploitThird Party Advisory |
Change history (0)
No recorded changes yet.