CVE-2026-22248Network attack vector

Authenticated code execution via unsafe PHP instantiation

Published Mar 11, 2026 · Updated Mar 11, 2026

Deserialization in GLPI 11.0.0 through 11.0.4 allows remote authenticated users to execute code through a malicious file upload. GLPI's upload-processing path passes attacker-controlled file content into an unsafe PHP instantiation, causing the uploaded payload to execute. Technician-level access is required, and successful exploitation runs code in the server-side application's security context.

CVSS severity8.0
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization in GLPI 11.0.0 through 11.0.4 allows remote authenticated users to execute code through a malicious file upload. GLPI's upload-processing path passes attacker-controlled file content into an unsafe PHP instantiation, causing the uploaded payload to execute. Technician-level access is required, and successful exploitation runs code in the server-side application's security context.

The record

CVE
CVE-2026-22248
Published
Mar 11, 2026
Updated
Mar 11, 2026
Vendor
GLPI Project
Product
GLPI
Classifications
CWE-502, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 11, 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=>= 11.0.0, < 11.0.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GLPI Project · GLPIversion=>= 11.0.0, < 11.0.5

Published CVSS scores

8.0GitHub, Inc.CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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