CVE-2026-117509

crownpku Rasa_NLU_Chi Model Persistor persistor.py Persistor._decompress path traversal

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 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.

Affected

crownpku · Rasa_NLU_Chi

CVSS v4.0 VULDB

2.1 LOWCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 VULDB

6.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS v2.0 VULDB

6.5 MEDIUMAV:N/AC:L/Au:S/C:P/I:P/A:P

EPSS

0.41% chance of exploitation in the next 30 days, 35th percentile

Published

2026-10-27

Updated

2026-10-28

Proof-of-concept exploits (1)

• user-attachments/files/33302165/poc.zipfind archive

CVE references

• crownpku/Rasa_NLU_ChiREFERENCE
• crownpku/Rasa_NLU_Chi/issues/138REFERENCE
• https://vuldb.com/cve/CVE-2026-117509REFERENCE
• https://vuldb.com/submit/1024527REFERENCE
• https://vuldb.com/vuln/427075REFERENCE
• https://vuldb.com/vuln/427075/ctiREFERENCE

References

• CVE Record
• NVD entry