# CVE-2026-16767: Ne-Lexa php-zip ZIP ZipFile.php extractTo path traversal

> Remote attackers can exploit path traversal in the extractTo function to write files outside the intended directory, potentially leading to code execution.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Jul 2026
- **Updated:** 24 Jul 2026
- **Also known as:** GHSA-rqr8-4xxr-j89f

## What is CVE-2026-16767?

CVE-2026-16767 is a medium-severity path traversal vulnerability in Ne-Lexa php-zip, published on 23 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability was detected in Ne-Lexa php-zip up to 4.0.2. This affects the function ZipFile::extractTo of the file src/ZipFile.php of the component ZIP Handler. Performing a manipulation of the argument entryName results in path traversal. It is possible to initiate the attack remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2026-16767?


## How do I fix CVE-2026-16767?

No fix has been published for CVE-2026-16767 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-16767 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-16767 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-16767 and fix it if it is affected.

What it is: CVE-2026-16767 is a medium-severity path traversal vulnerability in Ne-Lexa php-zip, published on 23 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-16767 exists.

Affected product: Ne-Lexa php-zip. 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-2026-16767/ (Markdown: https://insights.sbomify.com/CVE-2026-16767/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-16767
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-16767
- OSV: https://osv.dev/vulnerability/CVE-2026-16767

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-16767/
Summaries are generated and may contain mistakes; the official description above is the record.