Race condition in VMware Tanzu velero - #VU153052
Published: October 1, 2026
Vulnerability identifier: #VU153052
CSH Severity: Medium
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-362
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to a race condition in pkg/repository/udmrepo/kopialib/repo_init.go. A remote attacker can exploit the race and cause one repository operation to adopt the bucket configuration and access credentials intended for a different repository/BSL.
Affected software
VMware Tanzu velero
Remediation
Install updates from vendor's website.
VMware Tanzu velero - update to 1.18.3