CVE-2026-23555
Description
A flaw was found in Xenstored, the daemon responsible for the Xenstore key-value store in Xen virtual machines. An unprivileged guest can exploit this vulnerability by issuing a Xenstore command that accesses a node using an illegal node path. This can cause Xenstored to crash, leading to a Denial of Service (DoS) for the affected system.
Statement
Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.
Understanding the Weakness (CWE)
Confidentiality,Integrity,Access Control
Technical Impact: Read Files or Directories; Modify Files or Directories; Bypass Protection Mechanism
An attacker may be able to traverse the file system to unintended locations and read or overwrite the contents of unexpected files. If the files are used for a security mechanism than an attacker may be able to bypass the mechanism.
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