Bentley iTwin Platform 2026-03-27 Access Token sensitive information in source

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability has been found in Bentley iTwin Platform 2026-03-27 and classified as problematic. Affected by this issue is some unknown functionality of the component Access Token Handler. This manipulation causes sensitive information in source. This vulnerability is registered as CVE-2026-35383. Remote exploitation of the attack is possible. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic was found in Bentley iTwin Platform 2026-03-27. Affected by this vulnerability is an unknown part of the component Access Token Handler. The manipulation with an unknown input leads to a sensitive information in source vulnerability. The CWE definition for the vulnerability is CWE-540. Source code on a web server or repository often contains sensitive information and should generally not be accessible to users. As an impact it is known to affect confidentiality. The summary by CVE is:

Bentley Systems iTwin Platform exposed a Cesium ion access token in the source of some web pages. An unauthenticated attacker could use this token to enumerate or delete certain assets. As of 2026-03-27, the token is no longer present in the web pages and cannot be used to enumerate or delete assets.

It is possible to read the advisory at raw.githubusercontent.com. This vulnerability is known as CVE-2026-35383 since 04/02/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

Upgrading to version 2026-03-27 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-18544). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (cisa-cg): 🔒

CVSSv2info

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

Exploitinginfo

Class: Sensitive information in source
CWE: CWE-540 / CWE-200 / CWE-284
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: iTwin Platform 2026-03-27

Timelineinfo

04/02/2026 Advisory disclosed
04/02/2026 +0 days CVE reserved
04/02/2026 +0 days VulDB entry created
04/03/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: raw.githubusercontent.com
Status: Confirmed

CVE: CVE-2026-35383 (🔒)
GCVE (CVE): GCVE-0-2026-35383
GCVE (VulDB): GCVE-100-355015
EUVD: 🔒

Entryinfo

Created: 04/03/2026 00:00
Updated: 04/03/2026 01:54
Changes: 04/03/2026 00:00 (75), 04/03/2026 01:54 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

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