{"id":"CVE-2026-13451","kind":"vulnerability","aliases":["CVE-2026-13451"],"related":[],"title":"KServe: namespace users can make the storage initializer send requests from inside the cluster","description":"A flaw was found in KServe. A namespace-scoped user with create/update permissions on InferenceService custom resources can exploit this vulnerability by providing a malicious `storageUri`. This Server-Side Request Forgery (SSRF) vulnerability allows the `storage-initializer` init container to issue arbitrary outbound HTTP/HTTPS requests from inside the cluster. This can lead to information disclosure, including credential theft for the node's Identity and Access Management (IAM) role or access to internal cluster services.","summary":"A user who can create or update InferenceService resources in their namespace can set a malicious storageUri, making the storage-initializer init container send arbitrary HTTP and HTTPS requests from inside the cluster. An attacker can use this to reach internal services and steal the node's IAM role credentials.","severity":"high","cvss":7.7,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["infrastructure","kserve","kubernetes","ml-platform","self-hosted"],"not_affected_if":["no-untrusted-namespace-users"],"how_to_check":"- unknown","fix":"- unknown","status":"open","published_at":"2026-10-28T20:17:23+00:00","first_seen_at":"2026-10-28T20:35:10+00:00","triaged_at":"2026-10-28T20:36:13+00:00","updated_at":"2026-10-28T20:36:13+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-28T20:36:13Z","model":"claude-haiku-5-5","output":{"fix":"- unknown","reach":"network","title":"KServe: namespace users can make the storage initializer send requests from inside the cluster","impact":"high","summary":"A user who can create or update InferenceService resources in their namespace can set a malicious storageUri, making the storage-initializer init container send arbitrary HTTP and HTTPS requests from inside the cluster. An attacker can use this to reach internal services and steal the node's IAM role credentials.","category":"infrastructure","nicknames":[],"who_cares":["kubernetes","kserve","self-hosted","ml-platform"],"confidence":0.6,"needs_auth":"yes","worst_case":"Attacker reads node IAM credentials and reaches internal cluster services","analyst_note":"Find the affected and fixed KServe versions and any patch or mitigation from the NVD entry (https://nvd.nist.gov/vuln/detail/CVE-2026-13451) or the KServe project advisory.","how_to_check":"- unknown","needs_analyst":true,"not_affected_if":["no-untrusted-namespace-users"],"who_is_affected":"Clusters running KServe where some namespace-scoped users can create or update InferenceService resources, since those users control the storageUri value that the storage-initializer fetches. Clusters where only trusted administrators can write InferenceService objects are less exposed. The sources do not name affected KServe versions.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000591,"input_tokens":3361,"output_tokens":510,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-13451':17A,20A '-2026':16A,19A 'access':148C,153C 'allow':116C 'arbitrari':55B,125C 'attack':65B 'cluster':14A,63B,132C,156C 'contain':53B,122C 'creat':34B 'create/update':93C 'credenti':80B,140C 'custom':97C 'cve':15A,18A 'disclosur':138C 'exploit':100C 'flaw':82C 'forgeri':113C 'found':84C 'host':29B 'http':56B 'http/https':127C 'https':58B 'iam':78B,150C 'ident':146C 'includ':139C 'inferenceservic':37B,96C 'inform':137C 'infrastructur':21B 'init':52B,121C 'initi':8A,51B,120C 'insid':12A,61B,130C 'intern':71B,155C 'issu':124C 'kserv':1A,22B,86C 'kubernet':23B 'lead':135C 'make':5A,47B 'malici':45B,106C 'manag':149C 'ml':25B 'ml-platform':24B 'namespac':2A,41B,89C 'namespace-scop':88C 'node':76B,144C 'outbound':126C 'permiss':94C 'platform':26B 'provid':104C 'reach':70B 'request':10A,59B,112C,128C 'resourc':38B,98C 'role':79B,151C 'scope':90C 'self':28B 'self-host':27B 'send':9A,54B 'server':110C 'server-sid':109C 'servic':72B,157C 'set':43B 'side':111C 'ssrf':114C 'steal':74B 'storag':7A,50B,119C 'storage-initi':49B,118C 'storageuri':46B,107C 'theft':141C 'updat':36B 'use':67B 'user':3A,31B,91C 'vulner':102C,115C","nicknames":[],"mitigations":[],"who_affected":"Clusters running KServe where some namespace-scoped users can create or update InferenceService resources, since those users control the storageUri value that the storage-initializer fetches. Clusters where only trusted administrators can write InferenceService objects are less exposed. The sources do not name affected KServe versions.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-28T20:17:23+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","cvss_by":"secalert@redhat.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-13451","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-13451","severity":null,"published_at":"2026-10-28T20:17:23+00:00","modified_at":"2026-10-28T20:17:23+00:00","first_seen_at":"2026-10-28T20:35:10+00:00","fetched_at":"2026-10-28T20:35:10+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}