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CVE-2026-105749 docling-project CVE debrief

CVE-2026-105749 is a vulnerability in the Docling project, specifically in the HTML, JATS, OpenDocument spreadsheet, and BoxNote backends. The vulnerability allows for CPU/memory exhaustion due to unbounded table rowspan/colspan attributes. This issue was fixed in version 2.131.0. Users should assess their exposure and update to version 2.131.0 or later. The vulnerability can lead to denial of service and requires a version update to ensure security. The affected versions are from 2.0.0 to 2.130.0.

Vendor
docling-project
Product
docling
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-05
Original CVE updated
2026-10-08
Advisory published
2026-10-05
Advisory updated
2026-10-08

Who should care

Users of the Docling project, specifically those using versions from 2.0.0 to 2.130.0, should assess their exposure to this vulnerability and update to version 2.131.0 or later. The vulnerability can lead to CPU/memory exhaustion and denial of service. Users should review and update Docling to version 2.131.0 or later, assess exposure of Docling installations to this vulnerability, and monitor for potential exploitation attempts.

Why it matters

CVE-2026-105749 is a medium-severity vulnerability in the Docling project that can lead to CPU/memory exhaustion. Users should assess their exposure and update to version 2.131.0 or later.

  • Potential for CPU/memory exhaustion leading to denial of service
  • Need for version update to ensure security

Technical summary

The Docling project, specifically versions from 2.0.0 to 2.130.0, is vulnerable to CPU/memory exhaustion due to unbounded table rowspan/colspan attributes in the HTML, JATS, OpenDocument spreadsheet, and BoxNote backends. This issue was fixed in version 2.131.0. The vulnerability can lead to denial of service and requires a version update to ensure security. The affected versions are from 2.0.0 to 2.130.0. Users should assess their exposure and update to version 2.131.0 or later. The vulnerability is caused by unbounded table rowspan/colspan attributes.

Defensive priority

Medium

Recommended defensive actions

  • Review and update Docling to version 2.131.0 or later
  • Assess exposure of Docling installations to this vulnerability
  • Monitor for potential exploitation attempts
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and source item provide details on the vulnerability, including its description, affected versions, and fixed version. The NVD entry is currently UNCLASSIFIED. The vulnerability is caused by unbounded table rowspan/colspan attributes in the HTML, JATS, OpenDocument spreadsheet, and BoxNote backends. The issue was fixed in version 2.131.0. The vulnerability can lead to CPU/memory exhaustion and denial of service.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-105749 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-105749

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-105749 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-105749

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Docling: Unbounded table rowspan/colspan in HTML, JATS, ODS and BoxNote backends causes CPU/memo

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/105xxx/CVE-2026-105749.json

    cve_program_cvelist_v5

  • Source reference

    Unverified legacy reference

    URL: https://github.com/docling-project/docling/security/advisories/GHSA-cgc7-9qp3-86m3

    Supplemental source - x_refsource_CONFIRM

  • Source reference

    Unverified legacy reference

    URL: https://github.com/docling-project/docling/pull/4414

    Supplemental source - x_refsource_MISC

  • Source reference

    Unverified legacy reference

    URL: https://github.com/docling-project/docling/commit/c5b4429cc6500a344c13edeb22e67610c2159b09

    Supplemental source - x_refsource_MISC

  • Source reference

    Unverified legacy reference

    URL: https://github.com/docling-project/docling/releases/tag/v2.131.0

    Supplemental source - x_refsource_MISC

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.