CVE-2026-42901
published 2026-05-22CVE-2026-42901: Origin validation error in Microsoft Entra ID allows an unauthorized attacker to elevate privileges over a network.
PriorityP359critical10CVSS 3.1
AVNACLPRNUINSCCHIHAH
EPSS
0.30%
21.7th percentile
Origin validation error in Microsoft Entra ID allows an unauthorized attacker to elevate privileges over a network.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | microsoft_entra | — | — |
CVSS provenance
nvdv3.110.0CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
cvelistv5v3.110.0CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
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GHSA
GHSA-2jpj-7p7q-hfqj: Origin validation error in Microsoft Entra ID allows an unauthorized attacker to elevate privileges over a network
ghsa_unreviewed·2026-05-26
CVE-2026-42901 [CRITICAL] CWE-346 GHSA-2jpj-7p7q-hfqj: Origin validation error in Microsoft Entra ID allows an unauthorized attacker to elevate privileges over a network
Origin validation error in Microsoft Entra ID allows an unauthorized attacker to elevate privileges over a network.
VulDB
Microsoft Entra origin validation (EUVD-2026-31522)
vuldb·2026-05-23
CVE-2026-42901 Microsoft Entra origin validation (EUVD-2026-31522)
A vulnerability was found in Microsoft Entra. It has been classified as very critical. Impacted is an unknown function. This manipulation causes origin validation error.
This vulnerability appears as CVE-2026-42901. The attack may be initiated remotely. There is no available exploit.
This product is a managed service, which means users themselves cannot handle vulnerability countermeasures.
CVEList
Microsoft Entra ID Elevation of Privilege Vulnerability
cvelistv5·2026-05-22·CVSS 10.0
CVE-2026-42901 [CRITICAL] CWE-346 Microsoft Entra ID Elevation of Privilege Vulnerability
Microsoft Entra ID Elevation of Privilege Vulnerability
Origin validation error in Microsoft Entra ID allows an unauthorized attacker to elevate privileges over a network.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-05-22
Published