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CVE record · CVE-2026-11386

ubuntu-pro-client Input Validation Vulnerability Leading to Arbitrary APT Directive Injection and Remote Code Execution

CVSS 9.0 CriticalCriticalEPSS 0.0053 · 44th percentile

Critical, because:

  • CVSS score 9.0: 9.0 or more.

How we decide what’s critical

Published by the CVE Program (CNA: canonical) at 16 Jul 2026, 12:16 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Canonical ubuntu-pro-client (ubuntu-advantage-tools) Package name: ubuntu-pro-client https://github.com/canonical/
  • affected before 37.3 python
Other versions: unaffected
Canonical Ubuntu 26.04 LTS Package name: ubuntu-advantage-tools https://launchpad.net/ubuntu/resolute
  • unaffected 37.2ubuntu0.1 dpkg
Other versions: affected
Canonical Ubuntu 24.04 LTS Package name: ubuntu-advantage-tools https://launchpad.net/ubuntu/noble
  • unaffected 37.2ubuntu~24.04.1 dpkg
Other versions: affected
Canonical Ubuntu 22.04 LTS Package name: ubuntu-advantage-tools https://launchpad.net/ubuntu/jammy
  • unaffected 37.2ubuntu~22.04.1 dpkg
Other versions: affected
Canonical Ubuntu 20.04 LTS Package name: ubuntu-advantage-tools https://launchpad.net/ubuntu/focal
  • unaffected 37.1ubuntu0~20.04.1 dpkg
Other versions: affected
Canonical Ubuntu 18.04 LTS Package name: ubuntu-advantage-tools https://launchpad.net/ubuntu/bionic
  • unaffected 37.1ubuntu0~18.04.1 dpkg
Other versions: affected
Canonical Ubuntu 16.04 LTS Package name: ubuntu-advantage-tools https://launchpad.net/ubuntu/xenial
  • unaffected 37.1ubuntu0~16.04.1 dpkg
Other versions: affected
Canonical Ubuntu 14.04 LTS Package name: ubuntu-advantage-tools https://launchpad.net/ubuntu/trusty
  • unaffected 19.7ubuntu0.1 dpkg
Other versions: affected
Identifiers
CVE-2026-11386
CNA
canonical
Weakness (CWE)
CWE-20
Tags
Published
16 Jul 2026
Updated
16 Jul 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
9.0 Critical 3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H CNA (canonical)
  • CISA KEV Not listed.
  • EPSS 0.0053, the 44th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 16 Jul 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.