CVE-2023-26735: Prometheus Blackbox Exporter

High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days.

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.

Affected products

• Prometheus Blackbox Exporter: version 0.23.0 only

Published 2023-04-26. Last modified 2026-07-09.