Microsoft Azure Logic Apps path traversal

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.4$5k-$25k0.00

Summaryinfo

A vulnerability was found in Microsoft Azure Logic Apps and classified as critical. The impacted element is an unknown function. Executing a manipulation can lead to path traversal. The identification of this vulnerability is CVE-2026-21227. The attack may be launched remotely. There is no exploit available. This product is a managed service. This means that users are not able to maintain vulnerability countermeasures themselves.

Detailsinfo

A vulnerability classified as critical was found in Microsoft Azure Logic Apps (the affected version is unknown). This vulnerability affects an unknown code. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Improper limitation of a pathname to a restricted directory ('path traversal') in Azure Logic Apps allows an unauthorized attacker to elevate privileges over a network.

The advisory is available at msrc.microsoft.com. This vulnerability was named CVE-2026-21227 since 12/11/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 02/03/2026). This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

This product is available as a managed service. Users are not able to maintain vulnerability countermeasures themselves.

The vulnerability is also documented in the databases at CNNVD (CNNVD-202601-3927), EUVD (EUVD-2026-4506) and CERT Bund (WID-SEC-2026-0201). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Microsoft Azure
  • Microsoft 365 Copilot
  • Microsoft Entra

Productinfo

Type

Vendor

Name

License

Managed Service

  • yes

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔒

CNA Base Score: 8.2
CNA Vector (microsoft): 🔒

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Status: 🔍

0-Day Time: 🔒

Timelineinfo

12/11/2025 CVE reserved
01/23/2026 +43 days Advisory disclosed
01/23/2026 +0 days VulDB entry created
02/03/2026 +11 days VulDB entry last update

Sourcesinfo

Vendor: microsoft.com

Advisory: msrc.microsoft.com
Status: Confirmed

CVE: CVE-2026-21227 (🔒)
GCVE (CVE): GCVE-0-2026-21227
GCVE (VulDB): GCVE-100-342514
EUVD: 🔒
CERT Bund: WID-SEC-2026-0201 - Microsoft Azure, Copilot und Entra: Mehrere Schwachstellen
CNNVD: CNNVD-202601-3927 - Microsoft Azure Logic Apps 安全漏洞

Entryinfo

Created: 01/23/2026 08:09
Updated: 02/03/2026 19:07
Changes: 01/23/2026 08:09 (62), 01/23/2026 15:25 (6), 01/24/2026 01:58 (7), 01/24/2026 12:59 (1), 01/25/2026 14:14 (1), 01/25/2026 15:30 (1), 02/03/2026 19:07 (11)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!