CVE-2026-55758

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.

CVSS

No CVSS.

References

Link	Resource
https://github.com/cc-tweaked/CC-Tweaked/commit/d1bfb2571d3bde55529fac50d8303b7404499ec0
https://github.com/cc-tweaked/CC-Tweaked/security/advisories/GHSA-2rrx-mch2-76cp
https://github.com/cc-tweaked/CC-Tweaked/security/advisories/GHSA-2rrx-mch2-76cp

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-27 20:17

Updated : 2026-09-09 21:09

NVD link : CVE-2026-55758

Mitre link : CVE-2026-55758

CVE.ORG link : CVE-2026-55758

JSON object : View

Products Affected

No product.

CWE

CWE-918

Server-Side Request Forgery (SSRF)

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