{"id":22493,"date":"2026-09-15T04:30:57","date_gmt":"2026-09-14T20:30:57","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-54246"},"modified":"2026-09-15T04:30:57","modified_gmt":"2026-09-14T20:30:57","slug":"cve-2026-54246","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-54246","title":{"rendered":"CVE-2026-54246 [MEDIUM] &#8211; Skipper is an HTTP router and reverse proxy for service composition. Prior to 0.27.13, the"},"content":{"rendered":"<p>Skipper is an HTTP router and reverse proxy for service composition. Prior to 0.27.13, the routesrv component serves cluster-wide control-plane data without application-layer authentication through \/routes, \/routes\/{zone}, \/swarm\/redis\/shards, and \/swarm\/valkey\/shards. The handlers registered in routesrv\/routesrv.go, eskipBytes.ServeHTTP in routesrv\/eskipbytes.go, RedisHandler.ServeHTTP in routesrv\/redishandler.go, and ValkeyHandler.ServeHTTP in routesrv\/valkeyhandler.go only restrict HTTP methods and do not authenticate callers. A compromised or otherwise attacker-controlled pod that can reach routesrv on the Kubernetes cluster network can bypass its namespace-scoped RBAC and read Ingress and RouteGroup backend URLs, filter-chain and OAuth or OIDC path details, and Redis or Valkey shard addresses across namespaces. NetworkPolicy can restrict reachability but does not remove the missing-authentication condition, and the established impact is confidentiality exposure rather than direct integrity or availability loss. This issue is fixed in version 0.27.13.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Skipper is an HTTP router and reverse proxy for service composition. Prior to 0.27.13, the routesrv component serves cluster-wide control-plane data without application-layer authentication through \/r<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-22493","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/22493","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=22493"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=22493"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=22493"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}