# CVE-2026-44439: LookyLoo - PlaywrightCapture permits access to local files and internal network resources during page capture

> Attackers can force the library to access local files or internal network resources via crafted URLs, potentially leaking sensitive data through capture outputs.

- **Severity:** Medium 6.6 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 13 May 2026
- **Updated:** 15 May 2026
- **Also known as:** GHSA-687h-xw6f-q2qw, PYSEC-2026-2259

## What is CVE-2026-44439?

CVE-2026-44439 is a medium-severity server-side request forgery vulnerability in Lookyloo PlaywrightCapture, published on 13 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

PlaywrightCapture is a simple replacement for splash using playwright. Prior to 1.39.6, PlaywrightCapture did not sufficiently restrict navigations and resource requests initiated by rendered pages. An attacker-controlled page could abuse browser-side redirection mechanisms, such as window.location.href, to make the capture process open file:// URLs or request resources hosted on private, loopback, link-local, or otherwise non-public IP addresses. In deployments where PlaywrightCapture processes untrusted URLs, this could allow a remote attacker to perform server-side request forgery against internal services or attempt to access local files from the capture environment. Depending on what capture artifacts are generated and exposed, responses from those resources could potentially be leaked through screenshots, saved page content, logs, or other capture outputs. This vulnerability is fixed in 1.39.6.

Weakness: CWE-918 (Server-Side Request Forgery)

## Which versions are affected by CVE-2026-44439?

3 open source packages ship an affected version, including playwrightcapture and PlaywrightCapture. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `playwrightcapture` | PyPI | All versions | 1.39.6 |
| `playwrightcapture` | PyPI | All versions | 1.39.6 |
| `PlaywrightCapture` | PyPI | All versions | 1.39.6 |

Products: Lookyloo Playwright Capture.

## How do I fix CVE-2026-44439?

Upgrade playwrightcapture to 1.39.6 or later.

## Is CVE-2026-44439 being exploited?

There is no known exploitation of CVE-2026-44439 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-44439 and fix it if it is affected.

What it is: CVE-2026-44439 is a medium-severity server-side request forgery vulnerability in Lookyloo PlaywrightCapture, published on 13 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-44439 in the wild and no public exploit code.

Affected packages and fixed versions:
- playwrightcapture (PyPI): affected all versions; fixed in 1.39.6
- playwrightcapture (PyPI): affected all versions; fixed in 1.39.6
- PlaywrightCapture (PyPI): affected all versions; fixed in 1.39.6

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-2026-44439/ (Markdown: https://insights.sbomify.com/CVE-2026-44439/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-44439
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-44439
- OSV: https://osv.dev/vulnerability/CVE-2026-44439

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-44439/
Summaries are generated and may contain mistakes; the official description above is the record.