CVE-2020-16248 json
Prometheus Blackbox Exporter through 0.17.0 allows /probe?target= SSRF.
published 2020-08-09 6 y ago modified 2026-06-17 4 mo 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
Exploit prediction
3.11% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-08).
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
-
github.com
/prometheus/blackbox_exporter/issues/669
exploit, third-party-advisory
-
prometheus.io
/docs/operating/security/#exporters
vendor-advisory
-
openwall.com
/lists/oss-security/2020/08/08/3
mailing-list, third-party-advisory
-
openwall.com
/lists/oss-security/2020/08/08/12
mailing-list, third-party-advisory
-
seclists.org
/oss-sec/2020/q3/94
mailing-list, third-party-advisory
Sources
- CVE List CVE-2020-16248
- NVD CVE-2020-16248
Fencer Vulns 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.