Denial of Service Vulnerability in psi-probe PSI Probe by psi-probe
CVE-2026-3269

5.3MEDIUM

Key Information:

Vendor

Psi-probe

Status
Psi Probe
Vendor
CVE Published:
26 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-3269?

A flaw exists in the session handling functionality of PSI Probe versions prior to 5.3.0, specifically within the handleRequestInternal method of the ExpireSessionsController. This vulnerability allows remote attackers to manipulate session requests, potentially leading to a denial of service. Despite early notification to the vendor regarding this issue, there has been no response, raising concerns about the safety of users running affected versions.

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Affected Version(s)

PSI Probe 5.0

PSI Probe 5.1

PSI Probe 5.2

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-2026-3269 - Proof of Concept

References

https://vuldb.com/?id.347993
vdb-entrytechnical-description
https://vuldb.com/?ctiid.347993
signaturepermissions-required
https://vuldb.com/?submit.758665
third-party-advisory

CVSS V4

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

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Ana10gy (VulDB User)
VulDB
JSON
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