---
title: "GHSA-7h65-4p22-39j6: github.com/crossplane/crossplane: Unexpected behavior from Is methods for IPv4-mapped IPv6 addresses"
url: https://erroneo.us/security/ghsa/GHSA-7h65-4p22-39j6/
description: "GHSA-7h65-4p22-39j6 (critical, Go): github.com/crossplane/crossplane: Unexpected behavior from Is methods for IPv4-mapped IPv6 addresses. A critical…"
type: advisory
section: "Security Digest"
date_published: 2024-10-25
date_modified: 2024-10-25
publisher: erroneo.us
author: erroneo.us Security Desk
ghsa: "GHSA-7h65-4p22-39j6"
license: All rights reserved. Quote with attribution and a link.
---

# GHSA-7h65-4p22-39j6: github.com/crossplane/crossplane: Unexpected behavior from Is methods for IPv4-mapped IPv6 addresses

## Affected packages

- Go `github.com/crossplane/crossplane` = 1.15.5 → fixed: 1.15.6
- Go `github.com/crossplane/crossplane` = 1.16.2 → fixed: 1.16.3
- Go `github.com/crossplane/crossplane` = 1.17.1 → fixed: 1.17.2

## Details

A critical vulnerability was reported in the versions of golang that Crossplane depends on. Details of the golang vulnerability are included below. Crossplane does not directly use the vulnerable functions from the net/netip package, but the version of golang libraries, runtime, and build tools have still been updated as part of this security advisory nonetheless. Critical Vulnerabilities Vulnerability: CVE-2024-24790, golang: net/netip: Unexpected behavior from Is methods for IPv4-mapped IPv6 addresses Description: The various Is methods (IsPrivate, IsLoopback, etc) did not work as expected for IPv4-mapped IPv6 addresses, returning false for addresses which would return true in their traditional IPv4 forms. Affected versions: 1.17.1,1.16.2,1.15.5 See screenshot for more details Fixed versions: 1.17.2,1.16.3,1.15.6 Release notes: https://github.com/crossplane/crossplane/releases/tag/v1.17.2 https://github.com/crossplane/crossplane/releases/tag/v1.16.3 https://github.com/crossplane/crossplane/releases/tag/v1.15.6

## Sources

- [GitHub Advisory GHSA-7h65-4p22-39j6](https://github.com/advisories/GHSA-7h65-4p22-39j6)
- [github.com](https://github.com/crossplane/crossplane/security/advisories/GHSA-7h65-4p22-39j6)

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Source page: https://erroneo.us/security/ghsa/GHSA-7h65-4p22-39j6/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt