VDB-377872 · Submit #854559 · CVE-2026-15529

yzhao062 pyod up to 3.6.1 persistence.py pyod.utils.persistence.load path deserialization

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.0	$0-$5k	0.81

Summaryinfo

A vulnerability described as critical has been identified in yzhao062 pyod up to 3.6.1. Affected by this vulnerability is the function pyod.utils.persistence.load of the file pyod/utils/persistence.py. Executing a manipulation of the argument path can lead to deserialization. This vulnerability is tracked as CVE-2026-15529. The attack can be launched remotely. No exploit exists. Applying a patch is advised to resolve this issue. The pull request to fix this issue requires some minor changes.

Detailsinfo

A vulnerability was found in yzhao062 pyod up to 3.6.1. It has been declared as critical. This vulnerability affects the function pyod.utils.persistence.load of the file pyod/utils/persistence.py. The manipulation of the argument path with an unknown input leads to a deserialization vulnerability. The CWE definition for the vulnerability is CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-15529. The exploitation appears to be easy. The attack can be initiated remotely. There are known technical details, but no exploit is available.

The pull request to fix this issue requires some minor changes.

Upgrading to version 3.6.2 eliminates this vulnerability. The upgrade is hosted for download at pypi.org. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be patching the affected component. Upgrade to pyod 3.6.2. The fix requires an explicit trusted=True argument before load() (and the same-class public compat_load()) will deserialize a pickle/joblib artifact, so the envelope, schema, and strict checks are no longer mistaken for a safety boundary. Affected: 3.5.0, 3.5.1, 3.5.2, 3.5.4, 3.6.0, 3.6.1 (no 3.5.3 release carries this module). Submitted by the pyod maintainer (GitHub: yzhao062).

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-43275). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

yzhao062

Name

pyod

Version

Website

Product: https://github.com/yzhao062/pyod/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.1

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.3
CNA Vector: 🔒

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Deserialization
CWE: CWE-502 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Upgrade: pyod 3.6.2
Patch: github.com

Timelineinfo

07/12/2026 Advisory disclosed
07/12/2026 +0 days VulDB entry created
07/20/2026 +8 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 697
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2026-15529 (🔒)
GCVE (CVE): GCVE-0-2026-15529
GCVE (VulDB): GCVE-100-377872
EUVD: 🔒

Entryinfo

Created: 07/12/2026 17:52
Updated: 07/20/2026 10:29
Changes: 07/12/2026 17:52 (56), 07/13/2026 07:35 (1), 07/20/2026 08:21 (6), 07/20/2026 08:24 (6), 07/20/2026 10:29 (30)
Complete: 🔍
Submitter: Dem0000000
Committer: yzhao062
Cache ID: 216::103

Submitinfo

Accepted

Submit #854559: Yue Zhao / yzhao062 pyod 3.5.0 through 3.5.2 CWE-502: Deserialization of Untrusted Data (by Dem0000000)

VulDB is the best source for vulnerability data and more expert information about this specific topic.