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CVE-2026-47315 Samsung Open Source CVE debrief

CVE-2026-47315 is a medium-severity vulnerability (CVSS 5.5) in Samsung Open Source Escargot, a JavaScript engine. The flaw involves an improper check for unusual or exceptional conditions (CWE-754), allowing input data manipulation. The vulnerability affects Escargot version 590345cc6258317c5da850d846ce6baaf2afc2d3. The CVE was published on 2026-05-19 and is currently undergoing analysis per NVD status. A fix has been proposed via GitHub pull request.

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 JavaScript engine in their products or services should prioritize this vulnerability. This includes embedded systems manufacturers, IoT device vendors, and any applications relying on Escargot for JavaScript execution. Security teams should track the NVD analysis status and prepare for patching once a fixed version is released.

Technical summary

The vulnerability stems from insufficient validation of exceptional conditions in Samsung's Escargot JavaScript engine. The affected commit 590345cc6258317c5da850d846ce6baaf2afc2d3 contains the vulnerable code. The CVSS vector indicates that exploitation requires local access and user interaction, with the primary impact being denial of service (high availability impact, no confidentiality or integrity impact per CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H). The CWE-754 classification suggests the root cause is failure to properly handle edge cases or exceptional states during input processing.

Defensive priority

medium

Recommended defensive actions

  • Review and apply the fix from the referenced GitHub pull request when merged
  • Upgrade Escargot to a version beyond commit 590345cc6258317c5da850d846ce6baaf2afc2d3 once available
  • Validate all input data handling in Escargot integrations, particularly around exceptional conditions
  • Monitor NVD for updated analysis and CVSS scoring as the entry is still undergoing analysis
  • Assess exposure of Escargot engine in production environments, particularly where untrusted JavaScript execution occurs

Evidence notes

The CVE description explicitly identifies the affected component as Samsung Open Source Escargot and the specific 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 local attack vector, low attack complexity, no privileges required, user interaction required, with high availability impact. The CWE-754 classification confirms the nature as an improper check for unusual or exceptional conditions.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-47315 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-47315

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

  • CVE-2026-47315 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-47315

    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.