Medium

Playwright Capture permits access to local files and internal network resources during page capture

  • Disclosed: 06.05.2026
  • Updated: 11.10.2026 13:19

Playwright Capture 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. The patch mitigates the issue by introducing request routing checks that block secondary requests to local files, non-global IP addresses, and .local domains when only_global_lookup is enabled, while still allowing the originally requested capture URL.

Affected software

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PlatformPackageVulnerable versionsFixed in
Python (PyPI) playwrightcapture < 1.39.6 1.39.6

References

CVSS score 7.5/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE)
CWE-918
Platform
Python (PyPI)
Package
playwrightcapture
Disclosed
06.05.2026
Updated
11.10.2026 13:19

Sources and licenses

OSV / GitHub Advisory Database - PYSEC-2026-2259 - PyPA Advisory Database; CC BY 4.0

OSV / GitHub Advisory Database - GHSA-687h-xw6f-q2qw - CC BY 4.0

Vulnerability history: playwrightcapture

All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.

This is the only known vulnerability of this package.

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