CVE-2026-46608Public exploitNetwork attack vector

Cross-origin monitoring data disclosure via wildcard fallback

Published Jun 25, 2026 · Updated Jun 25, 2026

CORS bypass in Nicolargo Glances before 4.5.5 allows remote attackers to read XML-RPC monitoring data through a victim's browser. GlancesXMLRPCServer.init collapses every multi-entry cors_origins allowlist to '*' and reuses that value for each response without checking Origin. Reachability requires XML-RPC server mode, two or more configured origins, and a victim who loads attacker-controlled content; exposure is read-only.

CVSS severity7.4
High
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CORS bypass in Nicolargo Glances before 4.5.5 allows remote attackers to read XML-RPC monitoring data through a victim's browser. GlancesXMLRPCServer.init collapses every multi-entry cors_origins allowlist to '*' and reuses that value for each response without checking Origin. Reachability requires XML-RPC server mode, two or more configured origins, and a victim who loads attacker-controlled content; exposure is read-only.

The record

CVE
CVE-2026-46608
Published
Jun 25, 2026
Updated
Jun 25, 2026
Vendor
Glances Project
Product
Glances
Classifications
CWE-183, CWE-942, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 25, 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=< 4.5.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Glances Project · Glancesversion=< 4.5.5

Published CVSS scores

7.4GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-183Permissive List of Allowed Inputs
CWE-942Permissive Cross-domain Security Policy with Untrusted Domains
T1189Drive-by Compromise

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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