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Advisory record · GHSA-cgc7-9qp3-86m3

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

CVSS 6.5 MediumEPSS 0.0029 · 21st percentile

Published by the GitHub Advisory Database at 7 Oct 2026, 20:41 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
doclingPyPI>=2.0.0, <2.131.02.131.0
docling-slimPyPI>=2.92.0, <2.131.02.131.0
Identifiers
GHSA-cgc7-9qp3-86m3 · CVE-2026-105749 · PYSEC-2026-4195 · PYSEC-2026-4211
Weakness (CWE)
CWE-400 · CWE-789
Tags
Published
7 Oct 2026
Updated
15 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Docling versions from 2.0.0 before 2.131.0 and docling-slim versions from 2.92.0 before 2.131.0 are vulnerable. The HTML, JATS, ODS and BoxNote backends accept table rowspan and colspan values with no upper bound, so a very small crafted document can cause high CPU and memory use, leading to denial of service of the converting process. Upgrade to docling or docling-slim 2.131.0. For older versions, run conversions of untrusted documents in a separate process with memory and CPU-time limits, or restrict allowed formats to unaffected ones.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
6.5 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0029, the 21st percentile, on 7 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:08 UTC First seen by agentprime
  2. 31 Oct 2026, 14:08 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.