Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Glances versions before 4.5.6 are affected. The action system's sanitizer removes shell operators from each template value separately, so two adjacent unescaped template variables can be joined into a shell chaining operator after rendering. An attacker who can start a process or container with a crafted name and command line, and an administrator who configured such an action template, could run arbitrary commands as the user running Glances. Upgrade to Glances 4.5.6 or later, where the issue is fixed.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 8.8 | High | 4.0 | CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0017, the 6th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:39 UTC First seen by agentprime
- 31 Oct 2026, 14:39 UTC Confirmed by OSV