Vulnerability · Published May 26, 2025 · Assigned by VulDB

CVE-2025-5173HumanSignal label-studio-ml-backend PT File neural_nets.py load deserialization

Medium 5.3

In plain English

A medium-severity unsafe deserialization in label-studio-ml-backend from HumanSignal. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)0.2%top 84.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A vulnerability has been found in HumanSignal label-studio-ml-backend up to 9fb7f4aa186612806af2becfb621f6ed8d9fdbaf and classified as problematic. Affected by this vulnerability is the function load of the file label-studio-ml-backend/label_studio_ml/examples/yolo/utils/neural_nets.py of the component PT File Handler. The manipulation of the argument path leads to deserialization. An attack has to be approached locally. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
PyPI	label-studio-ml	no fix listed	GHSA-55g9-6c2x-gf8q
PyPI	label-studio-ml	no fix listed	PYSEC-2026-1505

Affected products (as reported)

Vendor	Product	Versions
HumanSignal	label-studio-ml-backend	9fb7f4aa186612806af2becfb621f6ed8d9fdbaf

Weakness: CWE-502, CWE-20 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

References

VDB-310261 | HumanSignal label-studio-ml-backend PT File neural_nets.py load deserialization vdb-entry, technical-description
VDB-310261 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #578126 | HumanSignal label-studio-ml-backend 0.0 Deserialization third-party-advisory
https://github.com/HumanSignal/label-studio-ml-backend/issues/765 issue-tracking