CVE-2026-88986

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    CVE-2026-88986

    Published: 5 Nov 2026Last Modified: 8 Nov 2026

    Summary: Kubeflow Pipelines: Reflected XSS in the frontend pod information and events error responses

    Details: Kubeflow Pipelines enables users to build and deploy portable, scalable machine learning workflows. Prior to 2.15.0, the frontend routes /pipeline/k8s/pod and /pipeline/k8s/pod/events use frontend/server/k8s-helper.ts to include untrusted podname and podnamespace query values and backend error details in HTML-capable error responses. An unauthenticated attacker can craft a link that executes JavaScript in the frontend origin when a user who satisfies the deployment's authentication and route-access requirements follows it and reaches an affected response. Cookie disclosure depends on cookie attributes, and server-side code execution or availability impact is not established. This issue is fixed in version 2.15.0.

    References: https://github.com/kubeflow/pipelines/releases/tag/2.15.0, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/88xxx/CVE-2026-88986.json, https://github.com/kubeflow/pipelines/security/advisories/GHSA-g3qx-frcg-j979, https://nvd.nist.gov/vuln/detail/CVE-2026-88986, https://github.com/kubeflow/pipelines/commit/fedc25e3f7251933d4a37b964bc3e8176beea28e, https://github.com/kubeflow/pipelines/pull/12295

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -665bd68c4d21e3a0ab861e22587914f16d64db41

    Affected versions

    master-55ec846

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-88986 | CVE-DB