Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-77596— Kubeflow Pipelines API server lacks authorization for shared pipeline uploads

Quick assessment

Affected
kubeflow pipelines
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Kubeflow Pipelines 允许用户构建和部署可移植、可扩展的机器学习工作流。在 2.18.0 版本之前，多用户 HTTP 端点 和 调用的 函数在目标命名空间为空且 默认为 时，会跳过 权限检查。这导致低权限租户能够在缺乏必要写权限的情况下创建共享管道，或将攻击者控制的版本注入到现有的共享管道中；若 API 服务器可直接访问且未经过认证代理，未认证调用者亦可利用此绕过机制，而部署了此类认证代理的环境则不会暴露匿名访问风险。若启用了未固定（unpinned）的周期性运行任务，且该任务遵循最新版本，则可能以

CVSS 9.6 · Critical
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-77596

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Kubeflow Pipelines API server lacks authorization for shared pipeline uploads
Source: CVE Program / CVE List V5
Vulnerability Description
Kubeflow Pipelines enables users to build and deploy portable, scalable machine learning workflows. Prior to 2.18.0, the multi-user HTTP endpoints POST /apis/v2beta1/pipelines/upload and POST /apis/v2beta1/pipelines/upload_version call canUploadVersionedPipeline, which returns without SubjectAccessReview when the target namespace is empty while REQUIRE_NAMESPACE_FOR_PIPELINES defaults to false. A low-privilege tenant can create shared pipelines or inject attacker-controlled versions into existing shared pipelines without the required write permission; if the API server is directly reachable without an authenticating proxy, an unauthenticated caller can exploit the same bypass, while deployments protected by such a proxy do not expose anonymous access. An enabled unpinned recurring run that follows the latest version can then execute the injected specification in another tenant's namespace under that workload's service account, while pinned or embedded-specification runs are not automatically substituted. This issue is fixed in version 2.18.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
kubeflow pipelines < 2.18.0 -

II. Public POCs for CVE-2026-77596

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-77596

请登录查看更多情报信息。

Vendor Pages for CVE-2026-77596 (1)

Other References for CVE-2026-77596 (3)

Same Patch Batch · kubeflow · 2026-11-05 · 9 CVEs total

CVE-2026-88981 8.6 HIGH Kubeflow Pipelines: Unauthenticated SSRF through artifact provider endpoints
CVE-2026-88980 8.6 HIGH Kubeflow Pipelines: Unauthenticated server-side request forgery in the frontend http/https
CVE-2026-88984 7.2 HIGH Kubeflow Pipelines: RBAC bypass on shared pipelines allows any authenticated user to delet
CVE-2026-88985 6.5 MEDIUM Kubeflow Pipelines: SQL injection through unvalidated pagination tokens in Kubeflow Pipeli
CVE-2026-88986 6.1 MEDIUM Kubeflow Pipelines: Reflected XSS in the frontend pod information and events error respons
CVE-2026-88979 5.8 MEDIUM Kubeflow Pipelines: Unauthenticated SSRF vulnerability in Kubeflow Pipelines TensorBoard p
CVE-2026-88982 5.4 MEDIUM Kubeflow Pipelines: Cross-tenant execution-cache poisoning / output substitution via a nam
CVE-2026-88983 5.0 MEDIUM Kubeflow Pipelines — API server fetches a caller-supplied pipelineURL without host validat

IV. Related Vulnerabilities

Same product: pipelines
Same vendor: kubeflow
Same weakness: CWE-639