CVE-2026-102371: Ubuntu Pro for WSL wsl-pro-service · Invocation of process using visible sensitive information
Affects Ubuntu Pro for WSL wsl-pro-serviceSource CVE Database V5
Not known to be exploited · CVSS 5.7 Medium · fixed in Ubuntu Pro for WSL package updates : update the Ubuntu Pro for WSL wsl-pro-service package when convenient.
Data as of 12 Nov 2026, 23:24 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 1% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 0.1.19ubuntu2, 0.1.18~24.04.3, 0.1.18~22.04.2 +1
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 29 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.
What to do
Upgrade the Ubuntu Pro for WSL wsl-pro-service package and wsl-pro-service to 0.1.19ubuntu2, 0.1.18~24.04.3, 0.1.18~22.04.2 or 0.1.18~20.04.2.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Ubuntu Pro for WSLwsl-pro-service | Affected
| Fixed in
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| Ubuntu Pro for WSLwsl-pro-service | Affected
| Fixed in
|
| Ubuntu Pro for WSLwsl-pro-service | Affected
| Fixed in
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| Ubuntu Pro for WSLwsl-pro-service | Affected
| Fixed in
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GitHubwsl-pro-servicepkg:github/wsl-pro-serviceOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fixed version of the Ubuntu Pro for WSL service component is available starting from version 0.1.19ubuntu3. Users should upgrade to this or later versions to prevent token leakage. Until upgraded, consider applying process-hiding mitigations such as mounting /proc with hidepid options to restrict access to process command lines. No vendor advisory content was provided to indicate alternative mitigations or that no action is required.
Description
CVE-2026-102371 is a medium severity vulnerability in Canonical's Ubuntu Pro for WSL service component before version 0.1.19ubuntu3. The service runs as root inside each WSL instance and attaches the instance to Ubuntu Pro by executing the pro client with the subscription token passed as a command-line argument. On systems where /proc is mounted without process-hiding mitigations (the default in WSL), unprivileged local users can read the token from the command line of the running attach process. This token leakage could allow unauthorized attachment of other machines to the victim's Ubuntu Pro subscription, granting access to Ubuntu Pro services.