System information disclosure via XML-RPC CORS wildcard
Published Apr 2, 2026 · Updated Apr 2, 2026
Information disclosure in Nicolargo Glances before 4.5.3 allows remote attackers to read system monitoring data through the XML-RPC server. GlancesXMLRPCHandler accepts text/plain XML-RPC POST bodies and adds Access-Control-Allow-Origin: * to every response, allowing browser scripts from any origin to read them. Exploitation requires server mode on a network-reachable interface and a user visiting attacker-controlled content; exposed data includes host details and process command lines.
Summary
What happened
Information disclosure in Nicolargo Glances before 4.5.3 allows remote attackers to read system monitoring data through the XML-RPC server. GlancesXMLRPCHandler accepts text/plain XML-RPC POST bodies and adds Access-Control-Allow-Origin: * to every response, allowing browser scripts from any origin to read them. Exploitation requires server mode on a network-reachable interface and a user visiting attacker-controlled content; exposed data includes host details and process command lines.
The record
- CVE
- CVE-2026-33533
- Published
- Apr 2, 2026
- Updated
- Apr 2, 2026
- Vendor
- Glances Project
- Product
- Glances
- Classifications
- CWE-942
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 2, 2026CVE publishedPublication date reported by the CVE source.
- Apr 2, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 4.5.3
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
Public exploit references
- GHSA-7p93-6934-f4q7 browser and Python proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo