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TI-2026-68354 Aliases CVE-2026-105743GHSA-pc36-qwjq-x68c

SSRF guard bypass in Docling remote resource fetching

Priority LOW 25CWE-367Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Partial Red Hat: 2 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-918 and the CVSS impact.

Summary

Docling from 2.91.0 before 2.132.0 and docling-slim from 2.92.0 before 2.132.0 are affected. The URL check resolves a hostname once, then the HTTP client resolves the URL again, enabling DNS rebinding and mixed address records that reach internal services (CWE-918). HTML rendering with render_page also sends browser requests without checking their destination. A remote attacker needs no privileges, and content is exposed only if it is decoded as an image or shown in a page screenshot.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

Docling simplifies document processing by parsing diverse formats and providing integrations with the generative AI ecosystem. From 2.91.0 until 2.132.0, validate_url_safety in docling/backend/utils/image_resource_loader.py validates a hostname with a single IPv4 lookup and then allows the HTTP client to resolve and parse the original URL again, permitting DNS rebinding, mixed public and internal address records, and backslash authority parser disagreement to reach internal services. HTMLBackendOptions(render_page=True) also allows HTTP and HTTPS browser requests without validating their resolved destination. Exploitation requires remote fetching to be enabled, and response content is exposed only when it is decoded as an image or passively rendered in a page screenshot. This issue is fixed in 2.132.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00201 10th percentileScored 2026-11-07
Fix Partial docling (docling-project): 2.132.0docling-slim (docling-project): 2.132.0+2 more productsRed Hat: 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
docling-projectdocling2.91.0 to before 2.132.02.132.0Patch availableCNA
docling-projectdocling-slim2.91.0 to before 2.132.02.132.0Patch availableCNA
—docling (PyPI)2.91.0 to before 2.132.02.132.0Patch availableGHSA-pc36-qwjq-x68c
—docling-slim (PyPI)2.92.0 to before 2.132.02.132.0Patch availableGHSA-pc36-qwjq-x68c
  • docling Vendordocling-project Affected 2.91.0 to before 2.132.0 Fixed in 2.132.0 Patch available CNA
  • docling-slim Vendordocling-project Affected 2.91.0 to before 2.132.0 Fixed in 2.132.0 Patch available CNA
  • docling (PyPI) Vendor— Affected 2.91.0 to before 2.132.0 Fixed in 2.132.0 Patch available GHSA-pc36-qwjq-x68c
  • docling-slim (PyPI) Vendor— Affected 2.92.0 to before 2.132.0 Fixed in 2.132.0 Patch available GHSA-pc36-qwjq-x68c

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:docling:docling:*:*:*:*:*:*:*:*2.91.0 to before 2.132.0Vulnerabledocling-project
  • cpe:2.3:a:docling:docling:*:*:*:*:*:*:*:* Versions 2.91.0 to before 2.132.0 Vulnerable ·docling-project

Remediation

Upgrade docling and docling-slim to 2.132.0, which fixes both. Red Hat lists no available plan for Lightspeed Core or Red Hat OpenShift AI (RHOAI).

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA docling (docling-project) Fixed in 2.132.0
  • Fix · CNA docling-slim (docling-project) Fixed in 2.132.0
  • Fix · GHSA-pc36-qwjq-x68c docling (PyPI) Fixed in 2.132.0 Advisory →
  • Fix · GHSA-pc36-qwjq-x68c docling-slim (PyPI) Fixed in 2.132.0 Advisory →

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Lightspeed CoreAffectedNo fix yet: Fix deferred
Red Hat OpenShift AI (RHOAI)AffectedNo fix yet: Fix deferred

Timeline

  1. 2026-10-06 Threatist record created from CVE-2026-105743
  2. 2026-10-06 Affected versions changed · Red Hat
  3. 2026-10-06 CVSS score added · Red Hat
  4. 2026-10-07 CVSS score added · NVD
  5. 2026-10-07 Alias added: GHSA-pc36-qwjq-x68c
  6. 2026-10-07 Fix available: PyPI/[email protected], PyPI/[email protected] · GHSA-pc36-qwjq-x68c
  7. 2026-10-07 CVSS score added · GHSA-pc36-qwjq-x68c
  8. 2026-10-07 Weakness changed · GHSA-pc36-qwjq-x68c
  9. 2026-10-07 6 new references · GHSA-pc36-qwjq-x68c
  10. 2026-10-08 CISA SSVC decision points changed

References

Patch 3

Advisory 1

Other 2

  • TI-2026-68355 Docling Tectonic TikZ rendering enables arbitrary file read/write CVSS 3.1HIGH 8.8
  • TI-2026-68362 Arbitrary local file read in Docling OpenDocument backend CVSS 4.0MEDIUM 6.9
  • TI-2026-68360 Docling table span parsing causes CPU and memory exhaustion CVSS 3.1MEDIUM 6.5
  • TI-2026-68353 Docling sends configured HTTP headers to any remote image host CVSS 3.1MEDIUM 5.3
  • TI-2026-68359 Docling embeds local image files from crafted JSON documents CVSS 3.1MEDIUM 4.3
  • TI-2026-32061 Docling: Unsafe XML Entity Expansion in USPTO Patent Backend CVSS 3.1HIGH 7.5
See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences