ubuntu-advantage-tools · Insecure Symlink Following Vulnerability Exists
Affects ubuntu-advantage-toolsSource GCVE Database
Not known to be exploited · CVSS 5.0 Medium · fixed in Ubuntu package updates : update the Ubuntu ubuntu-advantage-tools package when convenient.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 37.2ubuntu~22.04.1, 37.2ubuntu~24.04.1, 37.2ubuntu0.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 16 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.
What to do
Upgrade the Ubuntu ubuntu-advantage-tools to 37.2ubuntu~22.04.1 (package) or 37.2ubuntu~24.04.1 (package) or 37.2ubuntu0.1 (package).
Patches and advisories
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSubuntu-advantage-toolspkg:deb/ubuntu/ubuntu-advantage-tools?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 25.10ubuntu-advantage-toolspkg:deb/ubuntu/ubuntu-advantage-tools?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSubuntu-advantage-toolspkg:deb/ubuntu/ubuntu-advantage-tools?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 22.04 LTSubuntu-advantage-toolspkg:deb/ubuntu/ubuntu-advantage-tools?arch=source&distro=jammyOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
An insecure symlink following vulnerability exists in Canonical ubuntu-pro-client (formerly ubuntu-advantage-tools) within the pro collect-logs command framework. The utility creates or utilizes predictable temporary file paths or user-accessible log directories when gathering diagnostic information without verifying the file type or ownership. An unprivileged local attacker can exploit this behavior by creating a symbolic link (symlink) at a predictable destination path pointing to an arbitrary, root-readable file (such as /etc/shadow or private files within /root). When a root administrator or operator subsequently executes the pro collect-logs command, the tool follows the user-controlled symlink, reads the target file, and compresses its contents into the resulting diagnostic support archive. Because the output archive remains readable by the unprivileged user, the attacker can extract and read the sensitive root-owned files, leading to a complete information disclosure of system secrets.