GHSA-Q29V-XC37-WH5M
Vulnerability from github – Published: 2026-06-03 21:15 – Updated: 2026-07-21 15:04Impact
The HTML backend did not perform sufficient validation during resource handling:
- Accepted file:// URIs enabling local file system access when enable_local_fetch=True
- Path resolution allowed traversal outside intended directories via ../ sequences and absolute paths
- Did not block internal network resources under enable_remote_fetch=True
- HTTP redirects were not validated, potentially redirecting to unintended schemes
- No resource limits for remote image downloads and data: URIs
Patches
Fixed in versions 2.91.0 (initial fixes) and 2.94.0 (additional improvements). The fixes implement:
- Updated local path treatment: absolute files always blocked, relative paths require enable_local_fetch=True (default: False) and containment within configured base_path for path traversal protection
- file:// scheme stripped & treated as local path (above)
- IP address validation to prevent SSRF
- HTTP redirect validation, connection and read timeouts
- Size limit for both remote images (with streaming download) and base64-decoded data URIs
Workarounds
Keep both enable_local_fetch=False and enable_remote_fetch=False (defaults) when processing untrusted HTML documents.
References
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "docling"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.94.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-47214"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-73"
],
"github_reviewed": true,
"github_reviewed_at": "2026-06-03T21:15:02Z",
"nvd_published_at": "2026-06-26T16:16:31Z",
"severity": "HIGH"
},
"details": "### Impact\nThe HTML backend did not perform sufficient validation during resource handling:\n- Accepted `file://` URIs enabling local file system access when `enable_local_fetch=True`\n- Path resolution allowed traversal outside intended directories via `../` sequences and absolute paths\n- Did not block internal network resources under `enable_remote_fetch=True`\n- HTTP redirects were not validated, potentially redirecting to unintended schemes\n- No resource limits for remote image downloads and `data:` URIs\n\n### Patches\nFixed in versions 2.91.0 (initial fixes) and 2.94.0 (additional improvements). The fixes implement:\n- Updated local path treatment: absolute files always blocked, relative paths require `enable_local_fetch=True` (default: False) and containment within configured `base_path` for path traversal protection\n- `file://` scheme stripped \u0026 treated as local path (above)\n- IP address validation to prevent SSRF\n- HTTP redirect validation, connection and read timeouts\n- Size limit for both remote images (with streaming download) and base64-decoded data URIs\n\n### Workarounds\nKeep both `enable_local_fetch=False` and `enable_remote_fetch=False` (defaults) when processing untrusted HTML documents.\n\n### References\n- Initial fixes: [v2.91.0](https://github.com/docling-project/docling/releases/tag/v2.91.0)\n- Additional improvements: [v2.94.0](https://github.com/docling-project/docling/releases/tag/v2.94.0)",
"id": "GHSA-q29v-xc37-wh5m",
"modified": "2026-07-21T15:04:30Z",
"published": "2026-06-03T21:15:02Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/docling-project/docling/security/advisories/GHSA-q29v-xc37-wh5m"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-47214"
},
{
"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/docling-project/docling/releases/tag/v2.94.0"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/docling/PYSEC-2026-2146.yaml"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:L",
"type": "CVSS_V3"
}
],
"summary": "Docling: Unsafe URI and Path Handling in HTML Backend"
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.