CVE-2026-47317: Samsung Escargot uncontrolled recursion in JavaScript engine

CVE-2026-47317 · Severity: medium · CVSS 5.5 · Published 2026-05-19

Samsung Escargot, an open-source JavaScript engine often used in smart TVs and appliances, contains a vulnerability that can cause the software to crash. By providing specifically crafted input that triggers excessive internal repetition, an attacker can force the system to run out of memory or stack space. This results in a denial-of-service, potentially causing applications or devices using the engine to become unresponsive.

Technologies: Samsung Escargot. Vendors: Samsung.

Quick answers

Is CVE-2026-47317 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-47317 being exploited in the wild.
How severe is CVE-2026-47317?
Medium severity, with a CVSS score of 5.5, published 19 May 2026.
Which products and versions are affected?
Samsung Escargot 590345cc6258317c5da850d846ce6baaf2afc2d3.
Is there a fix for CVE-2026-47317?
A patch was published on 2026-05-14: Fixes merged into master branch Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-47317 attacked?
It is attacked with local access, in a software library.
Am I affected by CVE-2026-47317?
Check whether you run Samsung Escargot at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A vulnerability classified as uncontrolled recursion (CWE-674) exists in Samsung's Escargot JavaScript engine at commit 590345c. The flaw occurs when the engine processes certain nested or recursive structures, leading to excessive stack or memory allocation. An attacker can exploit this by providing malicious JavaScript code or JSON data that triggers deep recursion, resulting in a stack overflow or exhaustion of system resources. This leads to a denial-of-service (DoS) condition. The issue was addressed in pull request #1565, which includes fixes for crash issues in components such as BuiltinTypedArray and JSON parsing.

Affected products

  • Samsung Escargot 590345cc6258317c5da850d846ce6baaf2afc2d3

Timeline

  • 2026-04-28: other: Fixes submitted via pull request
  • 2026-05-14: patched: Fixes merged into master branch
  • 2026-05-19: disclosed: CVE published by Samsung TV & Appliance CNA

References

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