Medium · CVSS 5.3CVE-2026-117509

crownpku Rasa_NLU_Chi Model Persistor persistor.py Persistor._decompress path traversalCVE-2026-117509

Answer in brief

CVE-2026-117509 records a Medium severity (CVSS 5.3) vulnerability in crownpku Rasa_NLU_Chi Model Persistor persistor.py Persistor._decompress path traversal. The current sources do not mark it as known exploited. The current feed maps crownpku/Rasa_NLU_Chi (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 27, 2026Updated Oct 27, 2026Source checked Oct 27, 2026First seen by HOL Oct 27, 2026Material review Oct 27, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 5.3
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps crownpku/Rasa_NLU_Chi (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
crownpku/Rasa_NLU_Chigeneric	0.12.0 \|\| 0.12.1 \|\| 0.12.2	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for crownpku/Rasa_NLU_Chi.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Oct 27, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 27, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 27, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.