AZL-105278

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Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-105278.json
JSON Data
https://api.osv.dev/v1/vulns/AZL-105278
Upstream
  • CVE-2026-93834
Published
2026-09-25T14:17:24Z
Modified
2026-10-02T05:34:59Z
Summary
CVE-2026-93834 affecting package qemu 10.1.0-1
Details

A use-after-free vulnerability was found in QEMU's 9pfs subsystem. A race condition between the main thread and a worker thread when processing concurrent Tlcreate and Twalk requests allows a malicious guest user to craft a fid path containing stale heap data, bypassing directory traversal restrictions and escaping the shared directory boundary. This can lead to arbitrary host file read/write and code execution (VM escape) as the QEMU process user.

References

Affected packages

Azure Linux:3 / qemu

Package

Name
qemu
Purl
pkg:rpm/azure-linux/qemu

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Last Affected
10.1.0-1

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-105278.json"