https://vulnerability.circl.lu/sightings/feed 2026-09-27T15:25:20.647574+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent sightings. https://vulnerability.circl.lu/sighting/632396b5-26d0-4461-83b2-e4eeabde6594/export 2026-09-27T15:25:20.675362+00:00 Automation user https://vulnerability.circl.lu/user/automation {"uuid": "632396b5-26d0-4461-83b2-e4eeabde6594", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-51883", "type": "seen", "source": "https://gist.github.com/Ro1ME/30f5139a2920bf7075299a33eb1690f2", "content": "# CVE-2026-51883\n\n**Type:** Directory Traversal\n**Product:** Langchain-Chatchat\n**Affected versions:** 0.3.0, 0.3.1\n**Reference:** https://github.com/chatchat-space/Langchain-Chatchat/issues/5467\n\n## Description\n\nThe knowledge base creation and document upload interfaces in Langchain-Chatchat 0.3.0;0.3.1 is vulnerable to path traversal. An attacker can inject path traversal sequences (such as `..\\`) into the `knowledge_base_name` parameter to write knowledge base content to arbitrary locations outside the configured knowledge base root directory.\n\n## Discoverer\n\nRo1ME\n", "creation_timestamp": "2026-09-26T04:04:43.000000Z"} 2026-09-26T04:04:43+00:00