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CVE-2026-47316 Samsung Open Source CVE debrief

CVE-2026-47316 is a medium-severity vulnerability (CVSS 5.5) in Samsung's open-source JavaScript engine, Escargot. The flaw stems from improper handling of exceptional conditions (CWE-703), enabling input data manipulation. The vulnerability affects Escargot at commit 590345cc6258317c5da850d846ce6baaf2afc2d3. Published on 2026-05-19, this issue is currently undergoing analysis in the NVD. A pull request addressing this vulnerability has been submitted to the Escargot repository.

Vendor
Samsung Open Source
Product
Escargot
CVSS
MEDIUM 5.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-05-19
Original CVE updated
2026-07-24
Advisory published
2026-05-19
Advisory updated
2026-07-24

Who should care

Organizations using Samsung Escargot in embedded systems, IoT devices, or other JavaScript execution environments should prioritize this patch. Developers maintaining products with Escargot integration should monitor the referenced pull request for merge status and prepare for update deployment.

Technical summary

This vulnerability exists in Escargot, Samsung's open-source JavaScript engine designed for resource-constrained environments. The improper handling of exceptional conditions (CWE-703) allows an attacker to manipulate input data in a way that triggers unexpected behavior. The CVSS scoring suggests local attack vector with user interaction required, pointing to potential attack scenarios involving crafted JavaScript files or strings processed by the engine. The high availability impact (A:H) with no confidentiality or integrity impact suggests the primary risk is denial of service through crashes or hangs rather than code execution or data exfiltration.

Defensive priority

medium

Recommended defensive actions

  • Review the referenced GitHub pull request for patch details and apply when available
  • Monitor Samsung/escargot repository for official release containing the fix
  • Assess use of Escargot JavaScript engine in embedded or IoT products
  • Implement input validation and sandboxing for JavaScript execution contexts where Escargot is deployed
  • Subscribe to Samsung PSIRT advisories for updated guidance

Evidence notes

The CVE description identifies the affected component as Samsung Open Source Escargot, a JavaScript engine. The specific affected version is identified by Git commit hash 590345cc6258317c5da850d846ce6baaf2afc2d3. The CVSS vector (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H) indicates a local attack vector requiring user interaction, with high availability impact but no confidentiality or integrity impact.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-47316 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-47316

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-47316 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-47316

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.