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Insufficient validation of bracketed IPv6 hostnames in net/url

Exact source revision recorded 23 Oct 2026 15:48:27 UTC. It does not establish the source's current position. Latest evidence.

cve-program · CVE-2025-47912

Published

The Parse function permits values other than IPv6 addresses to be included in square brackets within the host component of a URL. RFC 3986 permits IPv6 addresses to be included within the host component, enclosed within square brackets. For example: "http://[::1]/". IPv4 addresses and hostnames must not appear within square brackets. Parse did not enforce this requirement.

Source published
29 Oct 2025 22:10:13 UTC
Source modified
4 Nov 2025 21:10:57 UTC
Observed here
23 Oct 2026 15:48:27 UTC
Source terms
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Sources read 11 Nov 13:09 UTC · 274 of 275 readable · 273 fully read · documentation 469/469 current