CVE-2026-47313

Process crash via unbounded TypedArray iteration

Published May 19, 2026 · Updated May 19, 2026

Excessive memory allocation in Samsung Open Source Escargot allows local users to crash an embedding application via crafted JavaScript. IteratorObject::iterableToList appends values from an attacker-controlled iterator without enforcing ArrayBuffer::maxArrayBufferSize before TypedArray construction. Reaching the flaw requires user interaction with crafted JavaScript; a very large sparse-array iterator exhausts process memory.

CVSS severity5.5
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Excessive memory allocation in Samsung Open Source Escargot allows local users to crash an embedding application via crafted JavaScript. IteratorObject::iterableToList appends values from an attacker-controlled iterator without enforcing ArrayBuffer::maxArrayBufferSize before TypedArray construction. Reaching the flaw requires user interaction with crafted JavaScript; a very large sparse-array iterator exhausts process memory.

The record

CVE
CVE-2026-47313
Published
May 19, 2026
Updated
May 19, 2026
Vendor
Samsung Electronics Co., Ltd.
Product
Escargot
Classifications
CWE-789, CAPEC-130, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 19, 2026CVE publishedPublication date reported by the CVE source.
  2. May 19, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=590345cc6258317c5da850d846ce6baaf2afc2d3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Samsung Electronics Co., Ltd. · Escargotversion=590345cc6258317c5da850d846ce6baaf2afc2d3

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.5Samsung TV & ApplianceCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-789Memory Allocation with Excessive Size Value
CAPEC-130Excessive Allocation
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo