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Fencer Vulns
medium 5.9

CVE-2026-32637 json

Velero vulnerable to file path traversal when extracting from backup's tarball

published 2026-08-20 2 mo ago modified 2026-09-10 1 mo ago also EUVD-2026-66117 , GHSA-j2g6-362q-6qc6 , GO-2026-6259

cvss
5.9
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 45%
public exploits
0
none known

Summary

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.

Patch / fix

  • go github.com/vmware-tanzu/velero 1.18.1
  • vmware velero 1.18.1
  • govulncheck-vulndb SLES for SAP applications 16.0, SLES 16.0 0.0.20260827T195228-160000.1.1

suse advisories SUSE-SU-2026:23625-1

  • govulncheck-vulndb openSUSE Leap 16.0 0.0.20260827T195228-160000.1.1

opensuse advisories openSUSE-SU-2026:21761-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-32637 updated cvss 6.8

github.com/vmware-tanzu/velero: Velero: File path traversal allows overwriting sensitive files via malicious backup tarball.

  • Red Hat Migration Toolkit for Containers rhmtc/openshift-migration-controller-rhel8 Red Hat OpenShift API for Data Protection oadp/oadp-velero-rhel9, oadp/oadp-mustgather-rhel9, oadp/oadp-kubevirt-velero-plugin-rhel9, oadp/oadp-velero-restic-restore-helper-rhel9 Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/cluster-backup-rhel9-operator Red Hat Openshift Data Foundation 4 odf4/odr-rhel9-operator
    affected: workaround, no fix available “Fix deferred”
  • Red Hat OpenShift Container Platform 4 openshift4/lifecycle-agent-rhel9-operator, openshift4/lifecycle-agent-operator-bundle
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2 mo ago

Exploit prediction

0.54% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 5.9 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
CNA 4.0 5.9 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected packages

ecosystem package affected fixed in
go github.com/vmware-tanzu/velero
<1.18.1
1.18.1

Affected products

  • velero-io velero

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.