CVE-2026-117509: crownpku Rasa_NLU_Chi Model Persistor persistor.py Persistor._decompress path traversal

Description

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.

CVSS vector

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

Attack vector

Network

Complexity

Low

Privileges

Low

User interaction

None

Confidentiality

Low

Integrity

Low

Availability

Low

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)0.4% · higher than 35% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

RA

Rasa_NLU_Chi · crownpku

0.12.0; 0.12.1; 0.12.2 · source: vendor