Denial of Service (DoS) Affecting docling-slim package, versions [2.92.0, 2.131.0)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published6 Oct 2026
- disclosed5 Oct 2026
- creditFrancesco Papaluca, Jeff Witt
Introduced: 5 Oct 2026
NewCVE-2026-105749 (opens in a new tab)How to fix?
Upgrade docling-slim to version 2.131.0 or higher.
Overview
docling-slim is a Modular version of the Docling package: SDK and CLI for parsing PDF, DOCX, HTML, and more, to a unified document representation for powering downstream workflows such as gen AI applications.
Affected versions of this package are vulnerable to Denial of Service (DoS) via oversized rowspan/colspan values in table cells processed by the HTML, JATS, BoxNote, and OpenDocument backends. An attacker can supply a document containing table cells that declare span values far larger than the actual table dimensions, causing the grid allocation and fill loops to be sized from the declared span rather than from the real table, resulting in unbounded memory and CPU consumption that crashes the process.
Details
Denial of Service (DoS) describes a family of attacks, all aimed at making a system inaccessible to its intended and legitimate users.
Unlike other vulnerabilities, DoS attacks usually do not aim at breaching security. Rather, they are focused on making websites and services unavailable to genuine users resulting in downtime.
One popular Denial of Service vulnerability is DDoS (a Distributed Denial of Service), an attack that attempts to clog network pipes to the system by generating a large volume of traffic from many machines.
When it comes to open source libraries, DoS vulnerabilities allow attackers to trigger such a crash or crippling of the service by using a flaw either in the application code or from the use of open source libraries.
Two common types of DoS vulnerabilities:
High CPU/Memory Consumption- An attacker sending crafted requests that could cause the system to take a disproportionate amount of time to process. For example, commons-fileupload:commons-fileupload.
Crash - An attacker sending crafted requests that could cause the system to crash. For Example, npm
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