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CVE-2026-54452 Details

Description

safeurl is a server-side request forgery protection library. Prior to 0.2.4, the privateNetworks list in ip.go omits the IPv6 ranges 64:ff9b:1::/48, 5f00::/16, 3fff::/20, and 100:0:0:1::/64. When an application enables IPv6 with EnableIPv6(true), an attacker-controlled destination in one of these ranges is not recognized as non-public and can pass the SSRF destination check, potentially allowing access to resources hosted within the omitted ranges. IPv6 is disabled by default, and configurations that retain EnableIPv6(false) are not exposed to this bypass. This issue is fixed in version 0.2.4.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/doyensec/safeurl/commit/d8f1021ea535b276f92999f0ec865da40e467016	[email protected]
https://github.com/doyensec/safeurl/pull/12	[email protected]
https://github.com/doyensec/safeurl/releases/tag/v0.2.4	[email protected]
https://github.com/doyensec/safeurl/security/advisories/GHSA-xgch-x3mx-cm3c	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-918	Server-Side Request Forgery (SSRF)	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

Date	Action	Recorded By
Sep 16, 2026	CVE Modified	CISA-ADP
Sep 14, 2026	New CVE Received	[email protected]