# CVE-2026-47310: Use after free in Escargot

> A use-after-free flaw in the Escargot JavaScript engine allows attackers to manipulate pointers, potentially leading to code execution or crashes.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 19 May 2026
- **Updated:** 19 May 2026
- **Also known as:** GHSA-rfr8-h3jx-53jv

## What is CVE-2026-47310?

CVE-2026-47310 is a high-severity use after free vulnerability in Samsung Open Source Escargot, published on 19 May 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

Use after free vulnerability in Samsung Open Source Escargot allows Pointer Manipulation.

This issue affects Escargot: 590345cc6258317c5da850d846ce6baaf2afc2d3.

Weakness: CWE-416 (Use After Free)

## Which versions are affected by CVE-2026-47310?

It affects 1 product.


Products: Samsung Escargot.

## How do I fix CVE-2026-47310?

No fix has been published for CVE-2026-47310 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-47310 being exploited?

There is no known exploitation of CVE-2026-47310 in the wild and no public exploit code.

## Other vulnerabilities in Samsung Open Source Escargot

- [CVE-2026-8915](https://insights.sbomify.com/CVE-2026-8915/): Memory corruption in Escargot (high 8.8)
- [CVE-2026-25208](https://insights.sbomify.com/CVE-2026-25208/): Integer overflow in Escargot (high 8.1)
- [CVE-2026-47311](https://insights.sbomify.com/CVE-2026-47311/): Memory corruption in Escargot (high 7.8)
- [CVE-2026-47314](https://insights.sbomify.com/CVE-2026-47314/): Memory corruption in Escargot (high 7.8)
- [CVE-2026-25205](https://insights.sbomify.com/CVE-2026-25205/): Memory corruption in Escargot (high 7.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-47310 and fix it if it is affected.

What it is: CVE-2026-47310 is a high-severity use after free vulnerability in Samsung Open Source Escargot, published on 19 May 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-47310 in the wild and no public exploit code.

Affected product: Samsung Open Source Escargot. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-47310/ (Markdown: https://insights.sbomify.com/CVE-2026-47310/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-47310
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-47310
- OSV: https://osv.dev/vulnerability/CVE-2026-47310

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-47310/
Summaries are generated and may contain mistakes; the official description above is the record.