Bug 2559358 (CVE-2026-115378)

Summary: CVE-2026-115378 github.com/lxc/incus: Incus: Arbitrary file write on the host via recursive file pull
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Incus. A privileged attacker within a virtual machine can write arbitrary files to the host system during a recursive file pull operation. By manipulating the guest agent to return duplicate file entries alternating between symbolic links and regular files, the attacker can cause the transfer process to escape the intended destination directory. This allows the attacker to overwrite sensitive files on the operator's host, potentially compromising the host system.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2559620, 2559626    
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Description OSIDB Bzimport 2026-10-22 20:52:12 UTC 
Incus before 6.0.7, 6.1.0 before 7.0.2, and 7.1.0 before 7.5.0 contains an arbitrary file write vulnerability in sftpRecursivePullFile that allows a malicious incus-agent to escape the target directory during incus file pull -r. Attackers with root in a virtual machine can return duplicate entries reported first as symlinks then as files or directories, writing attacker-controlled files such as /etc/shadow on the operator's host.