SES safely executes third-party JavaScript 'strict' mode programs in compartments that have no excess authority in their global scope. Prior to version 1.12.0, web pages and web extensions using `ses` and the Compartment API to evaluate third-party code in an isolated execution environment that have also elsewhere used `const`, `let`, and `class` bindings in the top-level scope of a `<script>` tag will have inadvertently revealed these bindings in the lexical scope of third-party code. This issue has been patched in version 1.12.0. Workarounds for this issue involve either avoiding top-level `let`, `const`, or `class` bindings in `<script>` tags, or change these to `var` bindings to be reflected on `globalThis`.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00201.

Exploitation none

Automatable yes

Technical Impact partial

Affected Vendors & Products

No data.

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Advisories
Source ID Title
EUVD EUVD EUVD-2025-11857 ses's global contour bindings leak into Compartment lexical scope
Github GHSA Github GHSA GHSA-h9w6-f932-gq62 ses's global contour bindings leak into Compartment lexical scope
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/endojs/endo/security/advisories/GHSA-h9w6-f932-gq62 cve-icon cve-icon
History

Mon, 21 Apr 2025 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 18 Apr 2025 16:15:00 +0000

Type Values Removed Values Added
Description SES safely executes third-party JavaScript 'strict' mode programs in compartments that have no excess authority in their global scope. Prior to version 1.12.0, web pages and web extensions using `ses` and the Compartment API to evaluate third-party code in an isolated execution environment that have also elsewhere used `const`, `let`, and `class` bindings in the top-level scope of a `<script>` tag will have inadvertently revealed these bindings in the lexical scope of third-party code. This issue has been patched in version 1.12.0. Workarounds for this issue involve either avoiding top-level `let`, `const`, or `class` bindings in `<script>` tags, or change these to `var` bindings to be reflected on `globalThis`.
Title ses's global contour bindings leak into Compartment lexical scope
Weaknesses CWE-497
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-04-21T13:28:59.847Z

Reserved: 2025-04-10T12:51:12.281Z

Link: CVE-2025-32792

cve-icon Vulnrichment

Updated: 2025-04-21T13:28:53.588Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-04-18T16:15:23.487

Modified: 2025-04-21T14:23:45.950

Link: CVE-2025-32792

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses