SSRF in Cloudflare Miniflare
CVE-2023-7078
Sending specially crafted HTTP requests to Miniflare's server could result in arbitrary HTTP and WebSocket requests being sent from the server. If Miniflare was configured to listen on external network interfaces (as was the default in wrangler until 3.19.0), an attacker on the local network could access other local servers.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.006 (43.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 43.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Cloudflare Miniflare — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/cloudflare/workers-sdk/security/advisories/GHSA-fwvg-2739-22v7 (Patch, Third Party Advisory)
- github.com/cloudflare/workers-sdk/pull/4532 (Patch)
Frequently asked questions
- What is CVE-2023-7078?
- CVE-2023-7078 is a high-severity vulnerability in Cloudflare Miniflare, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.5/10. Published 2023-12-29.
- How severe is CVE-2023-7078?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2023-7078 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.