CVE-2026-35383

Bentley Systems iTwin Platform exposed access token

MEDIUM
6.5
CVSS Score
Published: April 2, 2026 at 07:04 PM UTC
Updated: July 24, 2026 at 09:20 PM UTC
1 product affected across 1 vendoriTwin Platform

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.3%
SSVC
PoC

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2026-3-27
Vendor states this is fixed in 2026-3-27 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMcisa-cg
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
LOW
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-540

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