When Eclipse Mosquitto version 1.0 to 1.5.5 (inclusive) is configured to use an ACL file, and that ACL file is empty, or contains only comments or blank lines, then Mosquitto will treat this as though no ACL file has been defined and use a default allow policy
Published Mar 27, 2019
8.1
HIGHCVSS 3.0
EPSS 1.35%
Description
When Eclipse Mosquitto version 1.0 to 1.5.5 (inclusive) is configured to use an ACL file, and that ACL file is empty, or contains only comments or blank lines, then Mosquitto will treat this as though no ACL file has been defined and use a default allow policy. The new behaviour is to have an empty ACL file mean that all access is denied, which is not a useful configuration but is not unexpected.
Affected products
-
- Version 1.0StatusaffectedConstraints<unspecified
- Version unspecifiedStatusaffectedConstraints<=1.5.5
- 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 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| The Eclipse Foundation | Eclipse Mosquitto | n/a |
|
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:H/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:M/Au:N/C:P/I:P/A:P
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 3, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 1.35% (0.01353) | 70.62th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.35% (0.01353) | 70.33th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.16% (0.00164) | 53.45th | v3 (v2023.03.01) |
| Jun 25, 2024 | 0.16% (0.00164) | 53.22th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.16% (0.00164) | 51.22th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.62% (0.00624) | 17.80th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.62% (0.00624) | 0.00th | v1 |
References (2)
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=541870 x_refsource_CONFIRMIssue TrackingVendor Advisory
- https://lists.debian.org/debian-lts-announce/2019/10/msg00035.html mailing-listx_refsource_MLIST
| Link | Providers | Tags |
|---|---|---|
| https://bugs.eclipse.org/bugs/show_bug.cgi?id=541870 | x_refsource_CONFIRMIssue TrackingVendor Advisory | |
| https://lists.debian.org/debian-lts-announce/2019/10/msg00035.html | mailing-listx_refsource_MLIST |
Change history (0)
No recorded changes yet.