CVE-2026-121559

GLPI 10.0.0 before 10.0.28 and 11.0.0 before 11.0.10 Privilege Escalation via User Cloning

8.6 High

GLPI 10.0.0 before 10.0.28 and 11.0.0 before 11.0.10 contains a privilege escalation vulnerability that allows authenticated users to obtain elevated profiles by cloning accounts. A user with the Technician profile can clone a Super-Admin account with a new login and password, since User::getCloneRelations() copies every Profile_User and Group_User assignment without permission checks, yielding an attacker-controlled Super-Admin account.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: High
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.49%Unchanged since Nov 4, 2026

What each source reports

CVE List Score used 8.6

GLPI 10.0.0 before 10.0.28 and 11.0.0 before 11.0.10 Privilege Escalation via User Cloning

Record: CVE-2026-121559
CVSS 4.0: 8.6 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS 3.1: 7.2 HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-269
Updated: 2026-11-03

EUVDEUVD-2026-115904 8.6

Record: EUVD-2026-115904
CVSS 4.0: 8.6 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Updated: 2026-11-03

GitHub AdvisoriesGHSA-r7x3-2pgh-h4g2 8.6

GLPI 10.0.0 before 10.0.28 and 11.0.0 before 11.0.10 contains a privilege escalation...

Record: GHSA-r7x3-2pgh-h4g2
CVSS 4.0: 8.6 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 7.2 HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-269
Updated: 2026-11-03

NVD 8.6

Record: CVE-2026-121559
CVSS 4.0: 8.6 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 7.2 HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-269
Updated: 2026-11-03

OSV 8.6

GLPI 10.0.0 before 10.0.28 and 11.0.0 before 11.0.10 Privilege Escalation via User Cloning

Record: CVE-2026-121559
CVSS 4.0: 8.6 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness: CWE-269
Updated: 2026-11-05

OSVUBUNTU-CVE-2026-121559 8.6

Record: UBUNTU-CVE-2026-121559
CVSS 4.0: 8.6 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS 3.1: 7.2 HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-05

Affected products

glpi-project glpi

Affected packages

Affected packages
Package	Affected	Fixed
`glpi` Ubuntu:16.04:LTS	All versions, plus listed versions 0.84.8+dfsg.1-10.84.8+dfsg.1-1ubuntu1	None known

History

History
Recorded	Changed	Sources
Nov 5, 2026	affected, aliases, references	OSV
Nov 4, 2026	aliases, references	NVD, OSV
Nov 3, 2026	published	EUVD
Nov 3, 2026	published	CVE List, EUVD
Nov 3, 2026	aliases, references	GitHub Advisories, NVD
Nov 3, 2026	cwes, facts, references, severity, title	CVE List
Nov 3, 2026	first indexed	EUVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-121559 is a high vulnerability (CVSS 8.6) in Glpi-project Glpi, published November 3, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.49%, the 42nd percentile. No source names a fixed version.

References

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