CVE-2026-46611

MEDIUM

Glances: XML-RPC Server Missing Host Header Validation Enables DNS Rebinding Attack

Title source: cna
STIX 2.1

Description

Glances is an open-source system cross-platform monitoring tool. Prior to 4.5.5, the Glances XML-RPC server (glances -s, implemented in glances/server.py) does not validate the HTTP Host header, leaving it vulnerable to DNS rebinding attacks. An attacker can exploit DNS rebinding to exfiltrate the full system monitoring dataset from a victim's browser. This vulnerability is fixed in 4.5.5.

References (2)

Core 2
Core References

Scores

CVSS v3 5.3
EPSS 0.0012
EPSS Percentile 2.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-346 CWE-350
Status published
Products (2)
nicolargo/glances < 4.5.5
pypi/glances 0 - 4.5.5PyPI
Published Jun 25, 2026
Tracked Since Jun 26, 2026