{"id":"CVE-2026-105749","state":"PUBLISHED","title":"Docling: Unbounded table rowspan/colspan in HTML, JATS, ODS and BoxNote backends causes CPU/memory exhaustion","description":"Docling simplifies document processing by parsing diverse formats and providing integrations with the generative AI ecosystem. From 2.0.0 until 2.131.0, the HTML, JATS, OpenDocument spreadsheet, and BoxNote backends, including docling/backend/html_backend.py, docling/backend/jats_backend.py, and docling/backend/boxnote_backend.py, accept the rowspan and colspan attribute values without an upper bound and execute loops or allocate a table grid proportional to the declared span. A very small document can therefore cause sustained CPU use or multi-gigabyte memory allocation, and the document_timeout setting does not interrupt the single backend conversion call. Export through the TableData.grid property can further materialize the oversized grid. This issue is fixed in 2.131.0.","publishedAt":"2026-10-05T21:36:53.431Z","updatedAt":"2026-10-08T02:29:09.184Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["docling-project docling","docling-project docling-slim"],"affected":[{"vendor":"docling-project","product":"docling","versions":[{"version":">= 2.0.0, < 2.131.0","status":"affected"}]},{"vendor":"docling-project","product":"docling-slim","versions":[{"version":">= 2.92.0, < 2.131.0","status":"affected"}]}],"references":["https://github.com/docling-project/docling/security/advisories/GHSA-cgc7-9qp3-86m3","https://github.com/docling-project/docling/pull/4414","https://github.com/docling-project/docling/commit/c5b4429cc6500a344c13edeb22e67610c2159b09","https://github.com/docling-project/docling/releases/tag/v2.131.0"],"weaknesses":["CWE-400","CWE-789"],"ingestedAt":"2026-10-29T20:10:23.711Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/105xxx/CVE-2026-105749.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-105749","state":"PUBLISHED","datePublished":"2026-10-05T21:36:53.431Z","dateUpdated":"2026-10-08T02:29:09.184Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-10-05T19:11:07.947Z"},"containers":{"cna":{"title":"Docling: Unbounded table rowspan/colspan in HTML, JATS, ODS and BoxNote backends causes CPU/memory exhaustion","descriptions":[{"lang":"en","value":"Docling simplifies document processing by parsing diverse formats and providing integrations with the generative AI ecosystem. From 2.0.0 until 2.131.0, the HTML, JATS, OpenDocument spreadsheet, and BoxNote backends, including docling/backend/html_backend.py, docling/backend/jats_backend.py, and docling/backend/boxnote_backend.py, accept the rowspan and colspan attribute values without an upper bound and execute loops or allocate a table grid proportional to the declared span. A very small document can therefore cause sustained CPU use or multi-gigabyte memory allocation, and the document_timeout setting does not interrupt the single backend conversion call. Export through the TableData.grid property can further materialize the oversized grid. This issue is fixed in 2.131.0."}],"affected":[{"vendor":"docling-project","product":"docling","versions":[{"version":">= 2.0.0, < 2.131.0","status":"affected"}]},{"vendor":"docling-project","product":"docling-slim","versions":[{"version":">= 2.92.0, < 2.131.0","status":"affected"}]}],"references":[{"url":"https://github.com/docling-project/docling/security/advisories/GHSA-cgc7-9qp3-86m3","name":"https://github.com/docling-project/docling/security/advisories/GHSA-cgc7-9qp3-86m3","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/docling-project/docling/pull/4414","name":"https://github.com/docling-project/docling/pull/4414","tags":["x_refsource_MISC"]},{"url":"https://github.com/docling-project/docling/commit/c5b4429cc6500a344c13edeb22e67610c2159b09","name":"https://github.com/docling-project/docling/commit/c5b4429cc6500a344c13edeb22e67610c2159b09","tags":["x_refsource_MISC"]},{"url":"https://github.com/docling-project/docling/releases/tag/v2.131.0","name":"https://github.com/docling-project/docling/releases/tag/v2.131.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-400","lang":"en","description":"CWE-400: Uncontrolled Resource Consumption","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-789","lang":"en","description":"CWE-789: Memory Allocation with Excessive Size Value","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-05T21:36:53.431Z"},"source":{"advisory":"GHSA-cgc7-9qp3-86m3","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/docling-project/docling/security/advisories/GHSA-cgc7-9qp3-86m3","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-08T02:28:41.797887Z","id":"CVE-2026-105749","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-08T02:29:09.184Z"}}]}}}