CVE-2026-35383

Summary

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 Software

Weaknesses

• CWE-540: CWE-540 Inclusion of Sensitive Information in Source Code

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: yes
  • Technical Impact: partial

References

• https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-092-01.json
• https://www.cve.org/CVERecord?id=CVE-2026-35383
• https://cesium.com/learn/ion/cesium-ion-access-tokens/

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