{"id":"CVE-2026-117509","title":"crownpku Rasa_NLU_Chi Model Persistor persistor.py Persistor._decompress path traversal","summary":"A vulnerability was detected in crownpku Rasa_NLU_Chi up to 0.12.2. Affected is the function Persistor._decompress of the file rasa_nlu/persistor.py of the component Model Persistor. The manipulation results in path traversal. The attack…","severity":"medium","cvss":6.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C","cvssSource":"cna","cwe":["CWE-22"],"vendor":"crownpku","product":"Rasa_NLU_Chi","affected":["Rasa_NLU_Chi 0.12.0","Rasa_NLU_Chi 0.12.1","Rasa_NLU_Chi 0.12.2"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-28T15:57:44.451492Z"},"exploitAvailable":true,"published":"2026-10-27","updated":"2026-10-28","sourceUpdated":"2026-10-28T16:16:18.865Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-117509","references":[{"url":"https://vuldb.com/vuln/427075","label":"VDB-427075 | crownpku Rasa_NLU_Chi Model Persistor persistor.py Persistor._decompress path traversal"},{"url":"https://vuldb.com/vuln/427075/cti","label":"VDB-427075 | CTI Indicators (IOB, IOC, TTP, IOA)"},{"url":"https://vuldb.com/cve/CVE-2026-117509","label":"CVE-2026-117509 | CVE Analysis and Report"},{"url":"https://vuldb.com/submit/1024527","label":"Submit #1024527 | crownpku Rasa_NLU_Chi 0.12.2, commit f995c06e5aee5b6f68ea877c1a271667357a1c68 Path Traversal"},{"url":"https://github.com/crownpku/Rasa_NLU_Chi/issues/138"},{"url":"https://github.com/user-attachments/files/33302165/poc.zip"},{"url":"https://github.com/crownpku/Rasa_NLU_Chi/"}],"tags":["cve.org","exploit-available"],"epss":0.00407,"epssPercentile":0.34817,"ingestedAt":"2026-10-27T16:11:59.470Z","slug":"CVE-2026-117509","body":"## Overview\n\nA vulnerability was detected in crownpku Rasa_NLU_Chi up to 0.12.2. Affected is the function Persistor._decompress of the file rasa_nlu/persistor.py of the component Model Persistor. The manipulation results in path traversal. The attack may be launched remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.\n\n## Affected\n\n- `Rasa_NLU_Chi 0.12.0`\n- `Rasa_NLU_Chi 0.12.1`\n- `Rasa_NLU_Chi 0.12.2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":47,"depthScoreParts":{"impact":34.7,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":230745,"id":"CVE-2026-117509","ts":1793207732226,"field":"exploit_available","old":"false","new":"true"}]}