CVE-2026-47695 CC-Tweaked has an SSRF Protection Bypass with NAT64
Attackers can bypass SSRF protections in CC-Tweaked to access internal IPv4 services via NAT64 addresses on IPv6-capable servers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-47695?
CVE-2026-47695 is a high-severity server-side request forgery vulnerability in CC-Tweaked, published on 21 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
CC: Tweaked is a mod for Minecraft which adds programmable computers, turtles, and more to the game. Prior to version 1.119.0, CC-Tweaked's HTTP API (`http.request`, `http.websocket`) blocks requests to private network ranges to prevent server-side request forgery (SSRF). This protection can be bypassed on IPv6-capable servers using NAT64 well-known prefix addresses (`64:ff9b::/96`). An attacker who can execute Lua code can reach any internal IPv4 service that the filter is intended to block, by addressing it as `http://[64:ff9b::<ipv4-as-hex>]/` instead of its direct IPv4 address. This affects any CC-Tweaked deployment on a network with NAT64 routing — a configuration that is standard on AWS, GCP, and other cloud platforms when using IPv6-only subnets. Version 1.119.0 fixes the issue.
Weakness: CWE-918
Which versions are affected by CVE-2026-47695?
16 open source packages ship an affected version, including cc.tweaked:cc-tweaked-1.19.3-core, cc.tweaked:cc-tweaked-1.19.4-core and cc.tweaked:cc-tweaked-1.20-core.
| Package | Affected | Fixed in |
|---|---|---|
cc.tweaked:cc-tweaked-1.19.3-core Maven | All versions | 1.119.0 |
cc.tweaked:cc-tweaked-1.19.3-core Maven | All versions | 1.119.0 |
cc.tweaked:cc-tweaked-1.19.4-core Maven | All versions | 1.119.0 |
cc.tweaked:cc-tweaked-1.19.4-core Maven | All versions | 1.119.0 |
cc.tweaked:cc-tweaked-1.20-core Maven | All versions | 1.119.0 |
cc.tweaked:cc-tweaked-1.20-core Maven | All versions | 1.119.0 |
10 more packages
cc.tweaked:cc-tweaked-1.20.1-core Maven | All versions | 1.119.0 |
cc.tweaked:cc-tweaked-1.20.1-core Maven | All versions | 1.119.0 |
cc.tweaked:cc-tweaked-1.20.4-core Maven | All versions | 1.119.0 |
cc.tweaked:cc-tweaked-1.20.4-core Maven | All versions | 1.119.0 |
cc.tweaked:cc-tweaked-1.20.5-core Maven | All versions | 1.119.0 |
cc.tweaked:cc-tweaked-1.20.5-core Maven | All versions | 1.119.0 |
cc.tweaked:cc-tweaked-1.20.6-core Maven | All versions | 1.119.0 |
cc.tweaked:cc-tweaked-1.20.6-core Maven | All versions | 1.119.0 |
cc.tweaked:cc-tweaked-1.21-core Maven | All versions | 1.119.0 |
cc.tweaked:cc-tweaked-1.21-core Maven | All versions | 1.119.0 |
How do I fix CVE-2026-47695?
Upgrade cc.tweaked:cc-tweaked-1.19.3-core to 1.119.0 or later.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-47695 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-47695 exists.
Sources
Also known as GHSA-5jh9-2h63-pw4q.