CVE-2026-102371 Affecting wsl-pro-service package, versions <0.1.19ubuntu2.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published30 Sept 2026
- disclosed29 Sept 2026
Introduced: 29 Sep 2026
NewCVE-2026-102371 (opens in a new tab)How to fix?
Upgrade Ubuntu:26.04 wsl-pro-service to version 0.1.19ubuntu2.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream wsl-pro-service package and not the wsl-pro-service package as distributed by Ubuntu.
See How to fix? for Ubuntu:26.04 relevant fixed versions and status.
In wsl-pro-service before 0.1.19ubuntu3, the service component which runs as root inside each WSL instance attaches the instance to Ubuntu Pro by executing the pro client with the Ubuntu Pro token passed as a command-line argument (pro attach <token>). On systems where /proc is mounted without process-hiding mitigations (such as hidepid), which is the default in WSL, an unprivileged local user or process in the same WSL instance can read the token from /proc/<pid>/cmdline while the attach process is running. The leaked token could then be used to attach other machines to the victim's Ubuntu Pro subscription and gain unauthorized access to Ubuntu Pro services.