HighCVE-2026-118758

Kubeflow Pipeline View: Path Traversal (CVE-2026-118758)

Published 29.10.2026Last modified 29.10.2026Sources: pwn.watch, CVE.org

What is affected, what to do

Update Kubeflow Pipeline View to version 2.18.0.

Affected: Kubeflow Pipeline View lt *..2.18.0
Fixed in: Kubeflow Pipeline View 2.18.0

Not sure whether and how you are affected? Ask a question about this vulnerability

Metrics

7.5

Priority

XIEM Effective CVSS: highest available CVSS rating from NVD and vendor data.

Source: Vendor (CNA), CVSS v3

7.5

CVSS v3

Severity High on the scale from 0 to 10.

Source: pwn.watch, CVE.org

—

EPSS score

No value is available for this vulnerability.

Show all metrics

Severity: High
Priority (0–325) The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first? Read in glossary: 67.50 Methodology
Exploit maturity An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack. Read in glossary: no public PoC known
XIEM Effective CVSS XIEM® is the tiered managed-security operating model from NEOSEC and a registered trademark of NEOSEC GmbH. It extends classic SIEM — the central collection, normalisation and correlation of security-relevant events — with endpoint forensics, network visibility and deception technology, and consolidates them into three building tiers: Sentry, Orchestrate and Command. Read in glossary: 7.5 Methodology
CVSS v3 CVSS is the globally established, open standard for assessing the technical severity of a vulnerability on a scale from 0 to 10. It describes how easily a flaw can be exploited and what damage it can cause — but not how likely its actual exploitation is. CVSS and the complementary EPSS deliberately answer different questions. Read in glossary: 7.5
KEV status The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching. Read in glossary: —
Published: 29.10.2026
CISA assessment (SSVC): Exploitation: none known · automatable · Technical impact: partial; Source: CISA Vulnrichment, as of 29 October 2026
CWE CWE is a catalogue of typical weakness types in software and hardware — such as flawed input validation, unsafe memory handling or poor authentication. Where a CVE names a concrete vulnerability in a concrete product, a CWE describes the underlying class of defect. Read in glossary: CWE-22

Detection rules

No NEOSEC detection rule is available for this vulnerability yet.

Classification under NIS2 and CRA

Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.

NIS2 NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management. Read in glossary: High technical severity: assess and remediate the vulnerability in vulnerability handling under Art. 21(2)(e) NIS2 and document the decision.
CRA The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates. Read in glossary: From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
ISO/IEC 27001 ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security. Read in glossary: Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.

Description

Kubeflow Pipelines enables users to build and deploy portable, scalable machine learning workflows. Prior to 2.18.0, the volume artifact handler for GET /artifacts/get?source=volume did not confine a caller-supplied file path to the selected volume. A caller who can reach the route and identify an existing mounted volume can use path traversal to read files outside that volume when the artifact-serving process can read them. The frontend pod serves the request when artifact proxying is disabled, while the selected namespace's artifact-service pod serves it when proxying is enabled. A deployment with authentication disabled requires no application credentials; in multi-user deployments, the caller ordinarily must be authorized for the supplied namespace. This issue is fixed in version 2.18.0.

Source: pwn.watch, NVD (NIST), cvelistv5

Affected products

The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.

Affected products
		Affected versions	Fixed in
kubeflow	pipelines	`< 2.18.0`	`2.18.0`

Vendors and products

Kubeflow Kubeflow Pipeline View

Weakness classes (CWE)

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Base
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
Entry at MITRE CWE-22

References & sources

github.comkubeflow/pipelines/blob/2.18.0/docs/operator-guides/upgrade-2.1…x_refsource_MISC
github.comkubeflow/pipelines/commit/4d9bc5ab12b67efedb3923ef428a399cb445c…x_refsource_MISC
github.comkubeflow/pipelines/pull/13677x_refsource_MISC
github.comkubeflow/pipelines/releases/tag/2.18.0x_refsource_MISC, pwn-watch
github.comkubeflow/pipelines/security/advisories/GHSA-2fg9-fx2f-439rx_refsource_CONFIRM, pwn-watch
pwn.watchpwn.watch: Kubeflow Pipelines: unauthenticated path traversal reads arbitrary files via volume artifacts (CVE-2026-118758), fixed in 2.18.0pwn-watch
CVE.org (MITRE)CVE-2026-118758: Kubeflow unauthenticated path traversal to arbitrary file read on ml-pipeline-uipwn-watch
github.comGHSA-wg5q-x4j9-qm54 (CVE-2026-118759): Run log streaming endpoint bypasses namespace authorizationpwn-watch
github.comGHSA-vjhf-6c8f-qhwj (CVE-2026-118760): Missing namespace authorization permits cross-tenant artifact readspwn-watch
github.comGHSA-8fmv-6rg5-5924 (CVE-2026-118761): Pipeline archive upload decompression bomb exhausts server memorypwn-watch

Changes to this CVE

Who changed this CVE and when: NVD (analysis, affected products, CVSS), the CVE publisher (CNA) and additional providers such as CISA (ADP).

29.10.2026Record modifiedCISA ADP

CISA assessment (SSVC): exploitation: none known, automatable: yes

Show the original change

Individual changes of this event as published by NVD
Type	Action	Before	After
SSVC assessment	added	—	{"id":"CVE-2026-118758","role":"CISA Coordinator","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"partial"}],"version":"2.0.3","timestamp":"2026-10-29T20:18:21.704175Z"}

Source identifier: 134c704f-9b21-4f2e-91b3-4a467353bcc0

29.10.2026ReceivedGitHub

CVSS V3.1: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness type: CWE-22

Description added or changed

New references:

and 1 more reference

Show 9 original changes

Individual changes of this event as published by NVD
Type	Action	Before	After
Description	added	—	Kubeflow Pipelines enables users to build and deploy portable, scalable machine learning workflows. Prior to 2.18.0, the volume artifact handler for GET /artifacts/get?source=volume did not confine a caller-supplied file path to the selected volume. A caller who can reach the route and identify an existing mounted volume can use path traversal to read files outside that volume when the artifact-serving process can read them. The frontend pod serves the request when artifact proxying is disabled, while the selected namespace's artifact-service pod serves it when proxying is enabled. A deployment with authentication disabled requires no application credentials; in multi-user deployments, the caller ordinarily must be authorized for the supplied namespace. This issue is fixed in version 2.18.0.
CVSS	added	—	AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness type (CWE)	added	—	CWE-22
Affected versions (publisher)	added	—	New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/118xxx/CVE-2026-118758.json">CVE-2026-118758</a>
Reference	added	—	https://github.com/kubeflow/pipelines/blob/2.18.0/docs/operator-guides/upgrade-2.18.md#custom-storage-configuration-and-rollout
Reference	added	—	https://github.com/kubeflow/pipelines/commit/4d9bc5ab12b67efedb3923ef428a399cb445cf5f
Reference	added	—	https://github.com/kubeflow/pipelines/pull/13677
Reference	added	—	https://github.com/kubeflow/pipelines/releases/tag/2.18.0
Reference	added	—	https://github.com/kubeflow/pipelines/security/advisories/GHSA-2fg9-fx2f-439r

Source identifier: security-advisories@github.com

Embed badge

Show the severity and KEV status of this vulnerability on your site – with a link back here. The image is updated hourly.

<a href="https://intel.neosec.eu/en/cve/CVE-2026-118758"><img src="https://intel.neosec.eu/badge/cve/CVE-2026-118758.svg?lang=en" alt="CVE-2026-118758 – NEOSEC Intel" height="20"></a>