{"id":"GHSA-7jmw-8259-q9jx","aliases":["GO-2024-2917"],"title":"Traefik has unexpected behavior with IPv4-mapped IPv6 addresses","summary":"Traefik has unexpected behavior with IPv4-mapped IPv6 addresses","severity":"medium","vendor":"traefik","product":"github.com/traefik/traefik/v3","ecosystem":"go","affected":["github.com/traefik/traefik/v3 >= 3.0.0-beta3, < 3.0.2","github.com/traefik/traefik/v2 < 2.11.4","github.com/traefik/traefik < 2.11.4"],"patched":["github.com/traefik/traefik/v3 3.0.2","github.com/traefik/traefik/v2 2.11.4","github.com/traefik/traefik 2.11.4"],"published":"2024-06-11","updated":"2026-08-07","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-7jmw-8259-q9jx","references":[{"url":"https://github.com/traefik/traefik/security/advisories/GHSA-7jmw-8259-q9jx"},{"url":"https://github.com/traefik/traefik"},{"url":"https://github.com/traefik/traefik/releases/tag/v2.11.4"},{"url":"https://github.com/traefik/traefik/releases/tag/v3.0.2"},{"url":"https://pkg.go.dev/vuln/GO-2024-2917"},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-24790"}],"tags":["osv","go"],"ingestedAt":"2026-08-07T19:14:16.141Z","slug":"GHSA-7jmw-8259-q9jx","body":"## Overview\n\n### Impact\n\nThere is a vulnerability in [Go managing various Is methods (IsPrivate, IsLoopback, etc) for IPv4-mapped IPv6 addresses](https://groups.google.com/g/golang-announce/c/XbxouI9gY7k/m/TuoGEhxIEwAJ).\n\nThey didn't work as expected returning false for addresses which would return true in their traditional IPv4 forms.\n\n### References\n\n- [CVE-2024-24790](https://www.cve.org/CVERecord?id=CVE-2024-24790)\n\n### Patches\n\n- https://github.com/traefik/traefik/releases/tag/v2.11.4\n- https://github.com/traefik/traefik/releases/tag/v3.0.2\n\n### Workarounds\n\nNo workaround.\n\n### For more information\n\nIf you have any questions or comments about this advisory, please [open an issue](https://github.com/traefik/traefik/issues).\n\n## Affected packages\n\n- `github.com/traefik/traefik/v3 >= 3.0.0-beta3, < 3.0.2`\n- `github.com/traefik/traefik/v2 < 2.11.4`\n- `github.com/traefik/traefik < 2.11.4`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `github.com/traefik/traefik/v3 3.0.2`\n- `github.com/traefik/traefik/v2 2.11.4`\n- `github.com/traefik/traefik 2.11.4`","depth":"sunlit","depthScore":28,"depthScoreParts":{"impact":27.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}