CVE-2026-32632Public exploitNetwork attack vector

Internal API data exposure via DNS rebinding

Published Mar 18, 2026 · Updated Mar 18, 2026

Origin validation error in Nicolargo Glances before 4.5.2 allows remote attackers to read internal API data via DNS rebinding. The REST/WebUI FastAPI app in glances_restful_api.py omits TrustedHostMiddleware and accepts arbitrary Host headers. Exploitation requires a user to visit an attacker-controlled domain while a Glances web server is browser-reachable; the rebound origin can read REST data and reach the token route.

CVSS severity5.9
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Origin validation error in Nicolargo Glances before 4.5.2 allows remote attackers to read internal API data via DNS rebinding. The REST/WebUI FastAPI app in glances_restful_api.py omits TrustedHostMiddleware and accepts arbitrary Host headers. Exploitation requires a user to visit an attacker-controlled domain while a Glances web server is browser-reachable; the rebound origin can read REST data and reach the token route.

The record

CVE
CVE-2026-32632
Published
Mar 18, 2026
Updated
Mar 18, 2026
Vendor
Glances Project
Product
Glances
Classifications
CWE-346
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 4.5.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Glances Project · Glancesversion=< 4.5.2

Published CVSS scores

5.9GitHubCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-346Origin Validation Error

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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