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

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-32637— Velero vulnerable to file path traversal when extracting from backup's tarball

Quick assessment

Affected
velero-io velero
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.

Velero 是一款用于备份、还原和迁移 Kubernetes 集群资源及持久卷的开源工具。在 1.18.1 版本之前，如果攻击者破坏了备份对象存储后端，他们可以上传一个包含父目录路径的恶意备份 tarball（归档文件）。在还原过程中，这些路径可能会跳出预期的解压目录，从而覆盖 Velero Pod 文件系统中的敏感文件。该问题已在 1.18.1 版本中得到修复。

CVSS 5.9 · Medium

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-32637

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Velero vulnerable to file path traversal when extracting from backup's tarball
Source: CVE Program / CVE List V5
Vulnerability Description
Velero is an open source tool for backing up, restoring, and migrating Kubernetes cluster resources and persistent volumes. Prior to 1.18.1, an attacker who compromises the backup object-storage backend can upload a malicious backup tarball containing parent-directory paths that escape the extraction directory during restore and overwrite sensitive files in the Velero pod filesystem. This issue is fixed in version 1.18.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
velero-io velero < 1.18.1 -

II. Public POCs for CVE-2026-32637

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

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-32637

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-32637 (2)

Vendor Advisories for CVE-2026-32637 (1)

Mailing List Discussions for CVE-2026-32637 (1)

IV. Related Vulnerabilities

Same product: velero
Same weakness: CWE-22

V. Comments for CVE-2026-32637

No comments yet

Leave a comment