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Vulnerabilities Resolved in Veeam Backup & Replication 13.1.2

KB ID: 4948
Product: Veeam Backup & Replication | 13 | 13.1
Published: 2026-10-27
Last Modified: 2026-10-27
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Veeam Software Security Commitment
Veeam® is committed to ensuring its products protect customers from potential risks. As part of that commitment, we operate a Vulnerability Disclosure Program (VDP) for all Veeam products and perform extensive internal code audits. When a vulnerability is identified, our team promptly develops a patch to address and mitigate the risk. In line with our dedication to transparency, we publicly disclose the vulnerability and provide detailed mitigation information. This approach ensures that all potentially affected customers can quickly implement the necessary measures to safeguard their systems. It’s important to note that once a vulnerability and its associated patch are disclosed, attackers will likely attempt to reverse-engineer the patch to exploit unpatched deployments of Veeam software. This reality underscores the critical importance of ensuring that all customers use the latest versions of our software and install all updates and patches without delay.

Issue Details

CVE-2026-108142

A vulnerability allowing an unauthenticated attacker to bypass authorization on the CDP Coordinator Service.

Severity: Critical
CVSS v4.0 Score: 9.1CVSS: AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H
Affected Deployment Type: Windows-based Veeam Backup & Replication | Veeam Software Appliance
Source: Reported through HackerOne.

Affected Product
Solution

This vulnerability was fixed starting in the following builds:

CVE-2026-108140

A vulnerability allowing an authenticated user with the Restore Operator role, who also controls the contents of a backed-up NAS share, to write attacker-controlled files to an arbitrary path on the backup server through relative path traversal.

Severity: Medium
CVSS v4.0 Score: 5.9CVSS: AV:N/AC:H/AT:P/PR:H/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
Affected Deployment Type: Windows-based Veeam Backup & Replication | Veeam Software Appliance
Source: Reported through HackerOne.

Affected Product
Solution

This vulnerability was fixed starting in the following builds:

CVE-2026-108141

A vulnerability allowing an authenticated user with the Restore Operator role, who also controls the contents of a backed-up NAS share, to write attacker-controlled files to an arbitrary path on the backup server through relative path traversal.

Severity: Medium
CVSS v4.0 Score: 5.9CVSS: AV:N/AC:H/AT:P/PR:H/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
Affected Deployment Type: Windows-based Veeam Backup & Replication | Veeam Software Appliance
Source: Reported through HackerOne.

Affected Product
Solution

This vulnerability was fixed starting in the following builds:

CVE-2026-105477

A vulnerability in Veeam Agent for Linux allows for local privilege escalation. Only installations that are managed by a Veeam Backup & Replication instance are affected.

Severity: High
CVSS v4.0 Score: 7.3CVSS: AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: Reported through HackerOne.

Affected Product
Solution

This vulnerability was fixed starting in the following build:

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