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Fencer Intel
medium 5.8

CVE-2020-16248 json

Prometheus Blackbox Exporter through 0.17.0 allows /probe?target= SSRF.

published 6y ago modified 4mo ago also EUVD-2020-8214

cvss
5.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.1%
EPSS 3.1% chance of exploitation in 30 days, percentile 87%
public exploits
0
none known, plus a Nuclei check

Summary

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

Patch / fix

  • prometheus-blackbox-exporter Alpine 3.24, Alpine 3.23, Alpine 3.22 +4 more 0.18.0-r0

alpine advisories ALPINE-CVE-2020-16248

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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Exploit prediction

3.11% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • Nuclei template Prometheus Blackbox Exporter - Server-Side Request Forgery (SSRF) nuclei detection template
  • github.com https://github.com/prometheus/blackbox_exporter/issues/669 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 5.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-918 Server-Side Request Forgery

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.