---
id: CVE-2026-40923
aliases:
  - GO-2026-5643
  - GHSA-rx35-6rhx-7858
title: >-
  Tekton Pipelines VolumeMount path restriction bypass via missing
  filepath.Clean in github.com/tektoncd/pipeline
summary: >-
  Tekton Pipelines VolumeMount path restriction bypass via missing
  filepath.Clean in github.com/tektoncd/pipeline
severity: none
vendor: tektoncd
product: github.com/tektoncd/pipeline
ecosystem: go
affected:
  - 'github.com/tektoncd/pipeline >= 1.10.0, < 1.11.1'
patched:
  - github.com/tektoncd/pipeline 1.11.1
published: '2026-06-25'
updated: '2026-07-23'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GO-2026-5643'
references:
  - url: >-
      https://github.com/tektoncd/pipeline/security/advisories/GHSA-rx35-6rhx-7858
  - url: 'https://github.com/tektoncd/pipeline/releases/tag/v1.11.1'
tags:
  - osv
  - go
epss: 0.0022
epssPercentile: 0.12804
ingestedAt: '2026-07-24T19:07:03.345Z'
---

## Overview

Tekton Pipelines VolumeMount path restriction bypass via missing filepath.Clean in github.com/tektoncd/pipeline

## Affected packages

- `github.com/tektoncd/pipeline >= 1.10.0, < 1.11.1`

## Remediation

Upgrade to a patched release:

- `github.com/tektoncd/pipeline 1.11.1`