CVE-2026-6321 — fast-uri vulnerable to path traversal via percent-encoded dot segments

Affected: fast-uri, Red Hat HawtIO HawtIO 4.4.0, Red Hat Ansible Automation Platform 2.5 for RHEL 8, Red Hat Ansible Automation Platform 2.5 for RHEL 9, Red Hat Ansible Automation Platform 2.6 for RHEL 9, Red Hat Enterprise Linux 10, Red Hat Cluster Observability Operator 1.5.0, Red Hat Network Observability (NETOBSERV) 1.12.2, Red Hat Ansible Automation Platform 2.5, Red Hat Ansible Automation Platform 2.6 and 25 more

fast-uri decoded percent-encoded path separators and dot segments before applying dot-segment removal in its normalize() and equal() functions. Encoded path data was treated like real slashes and parent-directory references, so distinct URIs could collapse onto the same normalized path. Applications that normalize or compare attacker-controlled URLs to enforce path-based policy can be bypassed, with a path that appears confined under an allowed prefix normalizing to a different location. Versions <= 3.1.0 are affected. Update to 3.1.1 or later.

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CVE-2026-6321 — fast-uri vulnerable to path traversal via percent-encoded dot segments