Advisory record · GHSA-hhcg-r27j-fhv9

Glances's REST/WebUI Lacks Host Validation and Remains Exposed to DNS Rebinding

CVSS 5.9 MediumEPSS 0.0020 · 9th percentile

Published by the GitHub Advisory Database at 16 Mar 2026, 16:34 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
glancesPyPI<4.5.24.5.2
Identifiers
GHSA-hhcg-r27j-fhv9 · CVE-2026-32632 · PYSEC-2026-2171
Weakness (CWE)
CWE-346
Published
16 Mar 2026
Updated
13 Jul 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Glances versions before 4.5.2 have a host validation gap in the REST API, WebUI and token endpoint: they accept any HTTP Host header. An attacker who can get a victim's browser to bind an attacker-controlled domain to the Glances service (DNS rebinding) can read responses from these endpoints, which can include data from a Glances instance meant only for the local network. Upgrade to Glances 4.5.2 or later. Until then, do not expose the service on all interfaces, and restrict access to trusted networks.

Written 6 Nov 2026.

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

ScoreRatingCVSSVectorSource
5.9 Medium 3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0020, the 9th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:04 UTC First seen by agentprime
  2. 31 Oct 2026, 15:04 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.