---
id: CVE-2026-55758
title: >-
  CC: Tweaked is a mod for Minecraft which adds programmable computers, turtles,
  and more to the game
summary: >-
  CC: Tweaked is a mod for Minecraft which adds programmable computers, turtles,
  and more to the game. Prior to 1.120.0, the SSRF protection in
  projects/core/src/main/java/dan200/computercraft/core/apis/http/options/AddressPredicate.java
  b…
severity: none
cwe:
  - CWE-918
published: '2026-08-27'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T21:09:13.080'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-55758'
references:
  - url: >-
      https://github.com/cc-tweaked/CC-Tweaked/commit/d1bfb2571d3bde55529fac50d8303b7404499ec0
    label: security-advisories@github.com
  - url: >-
      https://github.com/cc-tweaked/CC-Tweaked/security/advisories/GHSA-2rrx-mch2-76cp
    label: security-advisories@github.com
  - url: >-
      https://github.com/cc-tweaked/CC-Tweaked/security/advisories/GHSA-2rrx-mch2-76cp
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00473
epssPercentile: 0.38331
ingestedAt: '2026-09-09T21:22:45.557Z'
---

## Overview

CC: Tweaked is a mod for Minecraft which adds programmable computers, turtles, and more to the game. Prior to 1.120.0, the SSRF protection in projects/core/src/main/java/dan200/computercraft/core/apis/http/options/AddressPredicate.java blocks the RFC 6052 64:ff9b::/96 NAT64 prefix but omits the RFC 8215 64:ff9b:1::/48 local-use prefix. On a dual-stack server using RFC 8215 NAT64, an unauthenticated user who can execute Lua code can use http.request or http.websocket with an address under 64:ff9b:1::/48 to reach loopback, RFC 1918, cloud metadata, or internal API endpoints because PrivatePattern.matches() does not classify the mapped IPv6 address as private. This issue is fixed in version 1.120.0.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.