{"id":"CVE-2023-26735","title":"blackbox_exporter v0.23.0 was discovered to contain an access control issue in its probe interface","summary":"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…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","cwe":["CWE-918","CWE-918"],"vendor":"prometheus","product":"blackbox_exporter","affected":["blackbox_exporter = 0.23.0"],"published":"2023-04-26","updated":"2026-07-04","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2023-26735","references":[{"url":"https://github.com/prometheus/blackbox_exporter#tls-and-basic-authentication","label":"cve@mitre.org"},{"url":"https://github.com/prometheus/blackbox_exporter/issues/1024","label":"cve@mitre.org"},{"url":"https://github.com/prometheus/blackbox_exporter/issues/1025","label":"cve@mitre.org"},{"url":"https://github.com/prometheus/blackbox_exporter/issues/1026","label":"cve@mitre.org"},{"url":"http://blackboxexporter.com","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://prometheus.com","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/prometheus/blackbox_exporter#tls-and-basic-authentication","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/prometheus/blackbox_exporter/issues/1024","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/prometheus/blackbox_exporter/issues/1025","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/prometheus/blackbox_exporter/issues/1026","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/prometheus/blackbox_exporter#tls-and-basic-authentication","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd"],"epss":0.0089,"epssPercentile":0.57876,"ingestedAt":"2026-07-04T20:57:37.114Z","slug":"CVE-2023-26735","body":"## Overview\n\nblackbox_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.\n\n## Affected\n\n- `blackbox_exporter = 0.23.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}