CVE-2026-55473 HomeBox: Notifier SSRF guard misses NAT64 prefixes (64:ff9b::/96, 64:ff9b:1::/48) — generic:// URL reaches cloud metadata on NAT64 egress

HomeBox is a home inventory and organization system. Prior to 0.26.0, the default-on BlockBogonNets and BlockCloudMetadata notifier SSRF protections in backend/internal/sys/validate/notifierurl.go do not inspect IPv4 destinations embedded in the NAT64 prefixes 64:ff9b::/96 and 64:ff9b:1::/48. An...

PT-2026-96187

Name of the Vulnerable Software and Affected Versions HomeBox versions prior to 0.26.0 Description An authenticated user can trigger a Server-Side Request Forgery SSRF by submitting a generic:// notifier. The SSRF protections BlockBogonNets and BlockCloudMetadata in the file...

CVE-2026-55473: Server-Side Request Forgery (SSRF)

HomeBox is a home inventory and organization system. Prior to 0.26.0, the default-on BlockBogonNets and BlockCloudMetadata notifier SSRF protections in backend/internal/sys/validate/notifierurl.go do not inspect IPv4 destinations embedded in the NAT64 prefixes 64:ff9b::/96 and 64:ff9b:1::/48. An...