CVE-2026-54452

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.

CVSS

No CVSS.

References

Link	Resource
https://github.com/doyensec/safeurl/commit/d8f1021ea535b276f92999f0ec865da40e467016
https://github.com/doyensec/safeurl/pull/12
https://github.com/doyensec/safeurl/releases/tag/v0.2.4
https://github.com/doyensec/safeurl/security/advisories/GHSA-xgch-x3mx-cm3c

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-14 17:17

Updated : 2026-09-16 16:17

NVD link : CVE-2026-54452

Mitre link : CVE-2026-54452

CVE.ORG link : CVE-2026-54452

JSON object : View

Products Affected

No product.

CWE

CWE-918

Server-Side Request Forgery (SSRF)

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