CVE-2026-44439Network attack vector

SSRF via unfiltered secondary browser requests

Published May 13, 2026 · Updated May 13, 2026

SSRF in Lookyloo PlaywrightCapture before 1.39.6 allows remote attackers to access local files and non-public network resources. The open_page routing in capture.py lets secondary file, private, loopback, link-local, and .local requests proceed without filtering. Exposure requires capture of an attacker-controlled page, and screenshots, HTML, HAR data, or logs can disclose resource responses.

CVSS severity7.5
High
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Lookyloo PlaywrightCapture before 1.39.6 allows remote attackers to access local files and non-public network resources. The open_page routing in capture.py lets secondary file, private, loopback, link-local, and .local requests proceed without filtering. Exposure requires capture of an attacker-controlled page, and screenshots, HTML, HAR data, or logs can disclose resource responses.

The record

CVE
CVE-2026-44439
Published
May 13, 2026
Updated
May 13, 2026
Vendor
Lookyloo
Product
PlaywrightCapture
Classifications
CWE-918, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 13, 2026CVE publishedPublication date reported by the CVE source.
  2. May 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.39.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Lookyloo · PlaywrightCaptureversion=< 1.39.6

Published CVSS scores

6.6GitHub, Inc.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
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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