Deserialization Vulnerability in pytries datrie by pytries
CVE-2026-5659

5.3MEDIUM

Key Information:

Vendor

Pytries

Status
Datrie
Vendor
CVE Published:
6 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-5659?

A security vulnerability has been identified in the pytries datrie component, specifically affecting the Trie.load, Trie.read, and Trie.setstate functions within the src/datrie.pyx file. This deserialization flaw can be exploited remotely, allowing an attacker to manipulate the data structure and potentially execute arbitrary code. The issue was reported to the project maintainers, but as of yet, there has been no official response or patch provided. Users and developers leveraging this component should exercise caution and review their implementations for potential risks associated with this vulnerability.

Affected Version(s)

datrie 0.8.0

datrie 0.8.1

datrie 0.8.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-5659 - Proof of Concept

References

https://vuldb.com/vuln/355483
vdb-entrytechnical-description
https://vuldb.com/vuln/355483/cti
signaturepermissions-required
https://vuldb.com/submit/785228
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

dhabaleshwar (VulDB User)
VulDB CNA Team
.