CVE-2026-68518 Glances: Command injection bypass of action-template sanitizer via cross-field shell-operator reconstruction
Attackers can execute arbitrary commands by bypassing sanitizers in action templates when rendering attacker-controlled process fields.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-68518?
CVE-2026-68518 is a high-severity command injection vulnerability in nicolargo glances, published on 17 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Glances is an open-source system cross-platform monitoring tool. Prior to 4.5.6, _sanitize_mustache_dict() in glances/actions.py sanitizes individual Mustache values before chevron.render(), allowing adjacent unescaped Mustache variables to reconstruct shell operators that secure_popen() executes when attacker-controlled process or container fields are rendered by an administrator-configured action template. This issue is fixed in 4.5.6.
Weakness: CWE-78
Which versions are affected by CVE-2026-68518?
3 open source packages ship an affected version, including glances.
| Package | Affected | Fixed in |
|---|---|---|
glances PyPI | All versions | 4.5.6 |
glances PyPI | All versions | 4.5.6 |
glances PyPI | All versions | 4.5.6 |
How do I fix CVE-2026-68518?
Upgrade glances to 4.5.6 or later.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-68518 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-68518 exists.
Sources
Also known as DEBIAN-CVE-2026-68518, GHSA-qcpp-8x79-hhp3, PYSEC-2026-3668, UBUNTU-CVE-2026-68518.