CVE-2023-26735
Publication date 26 April 2023
Last updated 4 August 2025
Ubuntu priority
Cvss 3 Severity Score
Description
blackbox_exporter v0.23.0 was discovered to contain an access control issue in its probe interface. This vulnerability allows attackers to detect intranet ports and services, as well as download resources. NOTE: this is disputed by third parties because authentication can be configured.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| prometheus-blackbox-exporter | 24.04 LTS noble |
Not affected
|
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal |
Not affected
|
|
| 18.04 LTS bionic |
Not affected
|
|
| 16.04 LTS xenial | Ignored end of standard support | |
| 14.04 LTS trusty | Ignored end of standard support |
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
References
Other references
- https://github.com/prometheus/blackbox_exporter/issues/1024
- https://github.com/prometheus/blackbox_exporter/issues/1024#issuecomment-1526944617
- http://blackboxexporter.com
- https://github.com/prometheus/blackbox_exporter/issues/1025
- http://prometheus.com
- https://github.com/prometheus/blackbox_exporter/issues/1026
- https://www.cve.org/CVERecord?id=CVE-2023-26735