Description
Glances is an open-source system cross-platform monitoring tool. Prior to 4.5.6, the cors_origins guard in glances/outputs/glances_restful_api.py uses exact list equality instead of wildcard membership, allowing a multi-origin list containing the wildcard to retain cors_credentials and expose authenticated REST API data to an untrusted website visited by a previously authenticated user. This issue is fixed in 4.5.6.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| nicolargo | glances | < 4.5.6 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | glances | 4.5.6+dfsg-1 | — |
| Debian 13 | glances | No fix yet | — |
| Debian 12 | glances | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | glances | No fix yet | — |
| Ubuntu 24.04 LTS | glances | No fix yet | — |
| Ubuntu 22.04 LTS | glances | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | glances | No fix yet | — |
| Ubuntu Pro 18.04 LTS | glances | No fix yet | — |
| Ubuntu Pro 16.04 LTS | glances | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | python-Glances | 4.5.6-1.1 | openSUSE-SU-2026:11674-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | glances | < 4.5.6 | 4.5.6 | GHSA-fp27-88fp-2phg |
Advisories 1
- openSUSE-SU-2026:11674-1 glances-common-4.5.6-1.1 on GA media SUSE / openSUSE Security Updates · Sep 3, 2026