Description
Calico's Application Layer Policy (disabled by default), which enforces HTTP rules through Dikastes, fails to perform URL path normalization. As a result, HTTP requests using path-traversal segments, encoded slashes, or repeated slashes are not correctly evaluated by Prefix path rules. Dikastes authorizes the request under the permitted prefix while the downstream workload or a fronting proxy normalizes the path and serves the restricted endpoint. An attacker with network access and no special RBAC can potentially reach HTTP endpoints the policy was intended to restrict.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Tigera Calico
Default version status: unaffected
0 to < 3.31.6affected
Tigera Calico Enterprise
Default version status: unaffected
0 to < 3.21.7affected3.22.0 to < 3.22.4affected
Tigera Calico Cloud
Default version status: unaffected
0 to < 22.4.0affected