CVE-2026-44016: Docling Unsafe Playwright-based HTML Rendering Vulnerability
HIGHCVE-2026-44016 is a HIGH (CVSS 8.2) unsafe playwright-based html rendering vulnerability (CWE-94: Improper Control of Generation of Code ('Code Injection')) affecting Docling libraries in the PyPI ecosystem. The issue involves unsafe playwright-based html rendering. Remediation is available by upgrading affected packages to version 2.91.0.
CVE-2026-44016 at a Glance
Security Impact
CVSS: 8.2
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L).
How to Fix CVE-2026-44016
To remediate this vulnerability, upgrade all affected Docling dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
pip install docling>=2.91.0Run the following command in your project directory to verify that all resolved dependencies use the patched release:
pip show doclingHow to Check if You Are Affected
To determine whether your Python environment is affected by CVE-2026-44016, inspect your installed packages using pip:
pip show doclingAnalyze the terminal output to locate any version of Docling in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.91.0), your application is affected.
Note: The pip show docling command checks currently installed packages in your active Python environment.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-94: Improper Control of Generation of Code ('Code Injection'), where the product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. In Docling, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2026-44016 Affected Docling Versions
1 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
docling
|
PyPI |
≥ 2.82.0
< 2.91.0
|
2.91.0
|
References
Frequently Asked Questions
What is CVE-2026-44016?
Which Docling versions are affected?
What version fixes CVE-2026-44016?
Is docling affected?
What is the CVSS score of CVE-2026-44016?
What CWE is associated with CVE-2026-44016?
How can I check PyPI dependencies for CVE-2026-44016?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-pj2v-ggqh-cmq2",
"modified" : "2026-07-20T21:33:26Z",
"published" : "2026-06-03T21:09:37Z",
"aliases" : [ "CVE-2026-44016" ],
"summary" : "Docling: Unsafe Playwright-based HTML Rendering",
"details" : "### Impact\nIn versions `>= 2.82.0, < 2.91.0`, if the HTML backend was explicitly configured for rendering (rendering option by default deactivated), then the Playwright-based rendering feature could allow JavaScript execution and unrestricted network access when processing untrusted HTML documents. An attacker could craft malicious HTML that executes arbitrary JavaScript in the rendering context or makes unauthorized network requests to internal services, potentially leading to SSRF attacks, data exfiltration, or remote code execution in the rendering environment.\n\n### Patches\nFixed in version 2.91.0. The rendering context now explicitly disables JavaScript execution (`java_script_enabled=False`) and implements network isolation controls. When `enable_remote_fetch` is disabled, the browser operates in offline mode, preventing all network requests.\n\n### Workarounds\nRefrain from using `render_page=True` when processing untrusted HTML documents.\n\n### References\n- Fix release: [v2.91.0](https://github.com/docling-project/docling/releases/tag/v2.91.0)",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "PyPI",
"name" : "docling"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "2.82.0"
}, {
"fixed" : "2.91.0"
} ]
} ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/docling-project/docling/security/advisories/GHSA-pj2v-ggqh-cmq2"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-44016"
}, {
"type" : "WEB",
"url" : "https://access.redhat.com/security/cve/CVE-2026-44016"
}, {
"type" : "WEB",
"url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2492339"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/docling-project/docling"
}, {
"type" : "WEB",
"url" : "https://github.com/docling-project/docling/releases/tag/v2.91.0"
}, {
"type" : "WEB",
"url" : "https://github.com/pypa/advisory-database/tree/main/vulns/docling/PYSEC-2026-2142.yaml"
}, {
"type" : "WEB",
"url" : "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44016.json"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-918", "CWE-94" ],
"severity" : "HIGH",
"github_reviewed" : true,
"github_reviewed_at" : "2026-06-03T21:09:37Z",
"nvd_published_at" : "2026-06-24T18:17:16Z"
}
}