CVE-2026-40923— Tekton Pipelines: VolumeMount path restriction bypass via missing filepath.Clean in /tekton/ check
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-40923
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View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Tekton Pipelines: VolumeMount path restriction bypass via missing filepath.Clean in /tekton/ check
Source: NVD (National Vulnerability Database)
Vulnerability Description
Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. Prior to 1.11.1, a validation bypass in the VolumeMount path restriction allows mounting volumes under restricted /tekton/ internal paths by using .. path traversal components. The restriction check uses strings.HasPrefix without filepath.Clean, so a path like /tekton/home/../results passes validation but resolves to /tekton/results at runtime. This vulnerability is fixed in 1.11.1.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Tekton Pipelines 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tekton Pipelines是Tekton开源的一个云原生管道。 Tekton Pipelines 1.11.1之前版本存在路径遍历漏洞，该漏洞源于VolumeMount路径限制存在验证绕过，允许通过..路径遍历组件将卷挂载到受限制的/tekton/内部路径下。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-40923
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-40923
请登录查看更多情报信息。
Same Patch Batch · tektoncd · 2026-04-21 · 5 CVEs total
| CVE-2026-40161 | 7.7 HIGH | Tekton Pipelines: Git resolver API mode leaks system-configured API token to user-controll |
| CVE-2026-40938 | 7.5 HIGH | Tekton Pipelines: Git Resolver Unsanitized Revision Parameter Enables git Argument Injecti |
| CVE-2026-25542 | 6.5 MEDIUM | Tekton Pipelines: VerificationPolicy regex pattern bypass via substring matching |
| CVE-2026-40924 | 6.5 MEDIUM | Tekton Pipelines: HTTP Resolver Unbounded Response Body Read Enables Denial of Service via |
IV. Related Vulnerabilities
Same product: pipeline
- CVE-2026-40924
Tekton Pipelines: HTTP Resolver Unbounded Response Body Read - CVE-2026-40938
Tekton Pipelines: Git Resolver Unsanitized Revision Paramete - CVE-2026-40161
Tekton Pipelines: Git resolver API mode leaks system-configu - CVE-2026-25542
Tekton Pipelines: VerificationPolicy regex pattern bypass vi - CVE-2026-33211
Tekton Pipelines git resolver has path traversal that allows
Same vendor: tektoncd
- CVE-2026-40924
Tekton Pipelines: HTTP Resolver Unbounded Response Body Read - CVE-2026-40938
Tekton Pipelines: Git Resolver Unsanitized Revision Paramete - CVE-2026-40161
Tekton Pipelines: Git resolver API mode leaks system-configu - CVE-2026-25542
Tekton Pipelines: VerificationPolicy regex pattern bypass vi - CVE-2026-33211
Tekton Pipelines git resolver has path traversal that allows
Same weakness: CWE-22
- CVE-2026-8274
npitre cramfs-tools Directory cramfsck.c do_directory path t - CVE-2022-50956
WordPress Plugin amministrazione-aperta 3.7.3 Local File Rea - CVE-2026-8215
Industrial Application Software IAS Canias ERP RMI iasReques - CVE-2026-42605
AzuraCast: Path Traversal in `currentDirectory` Parameter En - CVE-2026-42574
apko dirFS has a symlink-following path traversal that allow
V. Comments for CVE-2026-40923
No comments yet