CVE-2026-32637Network attack vector

File overwrite via unconfined backup archive extraction

Published Aug 25, 2026 · Updated Aug 25, 2026

Path traversal in Velero before 1.18.1 allows remote attackers to overwrite files in the server pod through a malicious backup archive. The restore-time backup extractor joins archive member names containing parent-directory segments to its destination without confining the resolved path. Exploitation requires control of the configured object-storage backend and a restore of the crafted backup, after which files writable by the pod can be replaced.

CVSS severity6.9
Medium
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Velero before 1.18.1 allows remote attackers to overwrite files in the server pod through a malicious backup archive. The restore-time backup extractor joins archive member names containing parent-directory segments to its destination without confining the resolved path. Exploitation requires control of the configured object-storage backend and a restore of the crafted backup, after which files writable by the pod can be replaced.

The record

CVE
CVE-2026-32637
Published
Aug 25, 2026
Updated
Aug 25, 2026
Vendor
Velero
Product
Velero
Classifications
CWE-22, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.18.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Velero · Veleroversion=< 1.18.1

Published CVSS scores

6.9GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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