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PHP CVE-2026-22248

HIGH
Deserialization of Untrusted Data (CWE-502)
2026-03-11 security-advisories@github.com
8.0
CVSS 3.1 · GitHub Advisory
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Severity by source

GitHub Advisory PRIMARY
8.0 HIGH
AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 22:06 vuln.today
CVE Published
Mar 11, 2026 - 16:16 nvd
HIGH 8.0

DescriptionGitHub Advisory

GLPI is an open-source asset and IT management software package that provides ITIL Service Desk features, licenses tracking and software auditing. From 11.0.0 to before 11.0.5, an authenticated technician user can upload a malicious file and trigger its execution through an unsafe PHP instantiation. This vulnerability is fixed in 11.0.5.

AnalysisAI

licenses tracking and software auditing. From 11.0.0 to versions up to 11.0.5 is affected by deserialization of untrusted data (CVSS 8.0).

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  • Risk assessment & exploitation conditions
  • Attack chain visualization
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Authenticate as technician user
Exploit
Upload malicious PHP file
Execution
Trigger unsafe PHP instantiation
Impact
Execute arbitrary code on server

Vulnerability AssessmentAI

Exploitation Authenticated technician-level account required. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 8.0 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker (requires authentication) could exploit this vulnerability to compromise the affected system.
Remediation Fixed in version 11.0.5.. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Identify all systems running affected versions (11.0.0-11.0.5) and isolate them from untrusted networks; document inventory and current system state. …

Sign in for detailed remediation steps and compensating controls.

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-22248 vulnerability details – vuln.today

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