CVE-2026-44017: Docling Unsafe Zip Extraction Vulnerability
HIGHCVE-2026-44017 is a HIGH (CVSS 7.5) unsafe zip extraction vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Docling libraries in the PyPI ecosystem. The issue involves unsafe zip extraction in easyocr model download. Remediation is available by upgrading affected packages to version 2.91.0.
CVE-2026-44017 at a Glance
Security Impact
CVSS: 7.5
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:U/C:H/I:H/A:H).
How to Fix CVE-2026-44017
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-2026-44017, 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-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), where the product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. 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-2026-44017 Affected Docling Versions
1 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
docling
|
PyPI |
< 2.91.0
|
2.91.0
|
References
Frequently Asked Questions
What is CVE-2026-44017?
Which Docling versions are affected?
What version fixes CVE-2026-44017?
Is docling affected?
What is the CVSS score of CVE-2026-44017?
What CWE is associated with CVE-2026-44017?
How can I check PyPI dependencies for CVE-2026-44017?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-cjqg-rq2h-2fvj",
"modified" : "2026-08-28T18:31:11Z",
"published" : "2026-06-03T20:02:42Z",
"aliases" : [ "CVE-2026-44017" ],
"summary" : "Docling: Unsafe Zip Extraction in EasyOCR Model Download",
"details" : "### Impact\nIn versions `< 2.91.0`, The EasyOCR model download functionality extracted ZIP archives without validating member paths, enabling Zip Slip attacks. If an attacker could compromise the model download source (via supply chain attack, DNS spoofing, or MITM), they could write arbitrary files to any location writable by the process, potentially achieving:\n- Remote code execution by overwriting Python files or system binaries\n- Persistent backdoors by modifying startup scripts or SSH keys\n- Data corruption or system compromise\n\n### Patches\nFixed in version 2.91.0. The extraction process now validates each archive member path using `os.path.realpath()` to ensure it remains within the target directory, raising a `SecurityError` for any path traversal attempts.\n\n### Workarounds\nEnsure model downloads occur over secure, authenticated channels. Use integrity verification (checksums) for downloaded models. Run the application with minimal file system permissions.\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:U/C:H/I:H/A:H"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "PyPI",
"name" : "docling"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "2.91.0"
} ]
} ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/docling-project/docling/security/advisories/GHSA-cjqg-rq2h-2fvj"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-44017"
}, {
"type" : "WEB",
"url" : "https://access.redhat.com/errata/RHSA-2026:60520"
}, {
"type" : "WEB",
"url" : "https://access.redhat.com/security/cve/CVE-2026-44017"
}, {
"type" : "WEB",
"url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2492448"
}, {
"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-2026-2143.yaml"
}, {
"type" : "WEB",
"url" : "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44017.json"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-22" ],
"severity" : "HIGH",
"github_reviewed" : true,
"github_reviewed_at" : "2026-06-03T20:02:42Z",
"nvd_published_at" : "2026-06-24T18:17:17Z"
}
}