CVE-2023-7078

Server-Side Request Forgery (SSRF) in Miniflare

HIGH
8.1
CVSS Score
Published: December 29, 2023 at 11:53 AM UTC
Updated: June 17, 2026 at 06:52 AM UTC
2 products affected across 1 vendorMiniflareWorkers SDK

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Severity
HIGH8.1
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ <=3.20230821.0v < 3.20231030.23.20230821.0 ≤ v < 3.20231030.23.20230821.0
Affected range stops below 3.20231030.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-918

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