Server-Side Request Forgery (SSRF) Affecting prometheus-blackbox-exporter package, versions <0.18.0-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
3.11% (88th percentile)

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  • Snyk IDSNYK-ALPINE323-PROMETHEUSBLACKBOXEXPORTER-14183358
  • published4 Dec 2025
  • disclosed9 Aug 2020

Introduced: 9 Aug 2020

CVE-2020-16248  (opens in a new tab)
CWE-918  (opens in a new tab)

How to fix?

Upgrade Alpine:3.23 prometheus-blackbox-exporter to version 0.18.0-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream prometheus-blackbox-exporter package and not the prometheus-blackbox-exporter package as distributed by Alpine. See How to fix? for Alpine:3.23 relevant fixed versions and status.

Prometheus Blackbox Exporter through 0.17.0 allows /probe?target= SSRF. NOTE: follow-on discussion suggests that this might plausibly be interpreted as both intended functionality and also a vulnerability

CVSS Base Scores

version 3.1